- [uncountable]
the liquid in a plant or tree that carries food to all its parts （植物体内运送养分的）液，汁 Oxford Collocations Dictionaryadjective- plant
- tree
- collect
- extract
- flow
- rise
- [countable] (especially North American English, informal)
a stupid person that you can easily trick, or treat unfairly 笨蛋；易上当的人 The poor sap never knew what was going on behind his back. 这个可怜的笨蛋从来不知道他背后发生了什么。
Word Originnoun sense 1 Old English sæp, probably of Germanic origin. The verb (dating from the mid 18th cent.) is often interpreted as a figurative use of the notion “drain the sap from”, but is derived originally from the verb sap, in the sense ‘undermine’. noun sense 2 early 19th cent.: abbreviation of dialect sapskull ‘person with a head like sapwood’, from sap (in the sense ‘sapwood’) + skull.