- (
physics 物理 the time taken for the radioactivity of a substance to fall to half its original value （放射性物质的）半衰期 - (
biology 生物 the time taken for the amount of a drug or other substance in the body to fall to half its original level （体内物质的）半衰期
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- compassionate leave 132
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- moderation 271
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- huntress 68
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- hank 82
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- Monarch 369
- To show or agree that something is true 47
- petunia 74
- lease 115
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- designated hitter 128
- gregarious 217
- lute 66
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- movements 45
- arch 510
- valid 851
- anomie 62
- mummer 69
- labrusca 39
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- Old 147
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- experience 589
- cusp 193
- gal 160
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- ever since 65
- Easter egg 150
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- the civil service 102
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- nauruan 65
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- unobserving 34
- flap 396
- fractionally 47
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- rinse 257
- supplemental 33
- long-winded 53
- vigour 183
- flake-out 64
- demerit 153
- goof around 157
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- Audio 186
- -ling 53
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- ACCESSIBILITY 55
- Scold 63
- fuze 100
- hotheaded 34
- nibs 61
- Barrister 140
- computerize 129
- colleague 665
- merrier 32
- immoral 312
- plated 45
- caucasian 93
- key card 76
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- pre-roll 53
- min. 71
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- Championship 155
- mers 43
- defibrillator 112
- finland 91
- Loom 214
- each way 115
- collectivize 129
- complaint 651
- unanimity 74
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- connexion 79
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- plurals 49
- common noun 137
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- tweener 41
- Implement 332
- luting 48
- disappearance 143
- cropt 36
- Trajectory 131
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- successfully 363
- naturopathy 63
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- hole up 129
- immobilizer 68
- corporal punishment 104
- outsize 104
- broad-minded 86
- clarsach 47
- Allegiance 240
- Can 228
- incorporated 152
- nondescript 123
- lavender 68
- gamy 130
- goofy 189
- mouldiest 40
- farmers' market 99
- applet 140
- forklift truck 118
- ro 42
- retake 80
- hm 105
- magnanimities 48
- giblets 99
- golden oldie 120
- survive on something 38
- nudity 63
- vivacious 98
- neurotypical 47
- savagely 22
- sulphate 78
- f 114
- Preeminent 131
- prophet 82
- mad 627
- cross your fingers 48
- Bolivia 84
- bidder 109
- SARCASTIC 129
- Cancellation 249
- deceased 152
- check in 199
- in the black 89
- Heroic 236
- come-on 169
- knaveries 32
- crap 202
- infirm 90
- underrated 68
- free 1877
- everyday 559
- boxers 115
- undercurrent 75
- skinny 425
- double act 117
- chief executive 130
- probably 600
- unbeknown 94
- concentrate on 72
- louvre 63
- chestful 70
- watcher 75
- redshirt 46
- moselle 52
- turnout 245
- dropping 70
- Illustrator 81
- terrifying 122
- distract 390
- doughnut 127
- double over 111
- matchet 35
- ahead 160
- grand-prix 70
- depth charge 122
- sun deck 55
- masterdom 30
- log on 55
- skin care 59
- class consciousness 101
- buffet 182
- gosht 50
- prayer 532
- BSc 52
- Comeback 16
- Hereafter 204
- not (...) until 64
- buoyantly 67
- Sequel 57
- cheetah 130
- oddity 211
- janet 42
- bloom 723
- Balkanization 59
- knowing 131
- Minister 243
- jollies 33
- Get up 155
- monotony 71
- cease-fire 66
- artsiest 72
- ER 50
- upright 520
- indoctrinate 81
- irresponsible 101
- REMINISCE 79
- pedestal 129
- jujitsu 46
- Session 228
- Dark 158
- East 159
- luxuriant 223
- boob tube 127
- promulgate 259
- Opera 162
- cruise missile 100
- nepal 86
- hafnium 124
- knottiest 34
- gee-gee 94
- monomer 53
- stack 606
- tram 836
- pepsin 78
- gravitate 145
- half-moon 101
- invariable 65
- obesity 243
- anabolic steroid 114
- Refrigerator 229
- nib 97
- Poem 88
- buffs 59
- salt water 80
- invigorated 37
- pause 595
- scenery 631
- characterization 76
- fraud 245
- provable 55
- opt 249
- macrobiotic 69
- Immaculate 233
- change purse 111
- polymer 65
- mach 65
- To die or to be killed 49
- explosion 621
- Primarily 143
- libel 352
- oversubscribed 194
- peta 54
- supplant 151
- Islam 68
- freshwater 116
- Solo 77
- gifted 107
- natter 112
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- grubby 140
- cogitate 121
- banalities 60
- come across 142
- ecocide 93
- focused 139
- abs 114
- opt in 84
- keelhaul 47
- indict 171
- troubadour 61
- credentials 245
- hot-blooded 65
- picnic 557
- out of the way 98
- guy 582
- beetle 129
- sixtieth 61
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- mmr 56
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- yuppified 36
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- connive 261
- bureaucratize 58
- GUISE 55
- ground-plan 57
- arboreta 60
- choppiest 46
- gobble up 134
- urea 73
- Campus 171
- horny 81
- bogeyman 117
- diction 125
- Dwelling 72
- Evolution thesaurus 47
- range 607
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- city 316
- joshua 41
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- Mrs. 48
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- Overdraft 349
- bank statement 110
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- ozzie 55
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- blind alley 107
- atmospheres 50
- freshen up 142
- machineability 40
- actual bodily harm 116
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- Ukraine 154
- brook 470
- Sickly 120
- embezzlement 97
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- escalate 371
- tiny 608
- bodega 64
- monolith 131
- mark down 53
- gravy train 103
- Samoa 73
- set-aside 278
- Benevolent 67
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- Adventurous 185
- molecular 97
- lifeboat 90
- Varied 300
- skivvy 170
- presence 583
- get into 147
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- legalization 60
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- authorize 310
- jodhpurs 60
- chiminea 39
- a rule of thumb 70
- bench 632
- fame 940
- tonne 186
- accident prone 99
- prick 247
- four-square 235
- Anglo 90
- art deco 103
- ralph 50
- safflower 45
- surely 488
- toucan 132
- click bait 81
- turfiest 42
- subsidise 353
- birmingham 56
- undignified 200
- overgarment 52
- callow 131
- sorted 56
- Spectator 207
- assignee 94
- azerbaijani 95
- mellow 169
- detachably 78
- repast 94
- Procreate 10
- nominalize 69
- receive 326
- Sporadic 90
- heterothermic 36
- feet 274
- troy 51
- the undersigned 85
- kenyan 57
- whereabouts 194
- so far 98
- Nil 52
- pastime 583
- precedent 82
- multiplication 94
- outpatient 94
- Something that is difficult or unpleasant to do or deal with 49
- panicked 53
- bibliophilic 38
- overstaffed 74
- peptalk 37
- waters 155
- planeload 52
- physics 519
- meddlesome 53
- handbag 373
- breath test 118
- edge out 117
- revolve 415
- fen 136
- inattentive 64
- Also and additional 62
- taut 131
- lunchtime 77
- camshaft 101
- Cables 46
- Addicted 170
- e-government 81
- -ible 56
- with respect to 60
- cd-rw 85
- flighty 160
- morello 50
- justiciable 44
- hooliganism 51
- err 131
- egocentric 138
- blemish 440
- STATUTORY 64
- intimidatingly 34
- goat 500
- chord 168
- camellia 100
- supertanker 60
half-life
Radioactivity and radiation: alpha particle, atomic, becquerel...
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