- [usually before noun]
happening all the time or repeatedly 连续发生的；不断的；重复的 There were constant interruptions. 不断有人打扰。 a constant stream of visitors all day 整天络绎不绝的游客 The ruined buildings serve as a constant reminder of the war. 被毁的建筑不断提醒人们战争。 The constant threat of violence from the other inmates was hard to deal with. 来自其他囚犯的持续暴力威胁很难处理。 Doctors are under constant pressure to treat more and more patients. 医生承受着治疗越来越多病人的持续压力。 Babies need constant attention. 婴儿一刻也离不开人。 This entrance is in constant use. 此入口经常使用。
Extra ExamplesHe is very ill and needs constant attention. 他病得很重，需要寸刻不离的照顾。 Her constant chatter was beginning to annoy him. 她无休止的唠叨开始使他心烦。 Her daughter is a constant source of worry to her. 她的女儿总是让她忧心。 I have been in constant pain since the accident. 事故发生后，我一直很痛苦。 It was a constant battle to avoid bankruptcy. 避免破产是一场持续的战斗。 She still has constant nightmares. 她仍然经常做噩梦。 The business world is one of constant change. 商界是一个不断变化的世界。 The old buildings are in constant need of repair. 这些旧建筑一直需要修理。 The vehicles were in constant use. 这些车辆一直在使用。
Oxford Collocations Dictionaryverbs- be
- remain
- stay
- …
- fairly
- reasonably
- relatively
- …
- across
- over
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that does not change 不变的；固定的；恒定的 The car was travelling at a constant speed of 50 mph. 汽车以每小时50英里的恒定速度行驶。 The samples need to be stored at a constant temperature. 这些样本需要在恒温下保存。 Crime levels remain constant. 犯罪率保持不变。 Ross was his most constant and loyal friend. 罗斯是他最忠实可靠的朋友。
Extra ExamplesAll variables except one must be held constant. 除了一个变量以外，其他所有变量必须保持恒定。 Prices have remained constant over this period. 价格在这一时期保持不变。 The level of unemployment remains fairly constant at around 10%. 失业率一直维持在 10% 左右，比较稳定。 The temperature must be kept constant. 温度必须保持不变。 These electrical properties are virtually constant across a wide range of temperatures. 这些电性能在很大温度范围内几乎保持不变。 These figures were virtually constant across the 1991 and 2001 censuses. 这些数字在1991年和2001年的人口普查中实质上没有变化。
Oxford Collocations Dictionaryverbs- be
- remain
- stay
- …
- fairly
- reasonably
- relatively
- …
- across
- over
Word Originlate Middle English (in the sense ‘staying resolute or faithful’): from Old French, from Latin constant- ‘standing firm’, from the verb constare, from con- ‘with’ + stare ‘stand’. The noun senses date from the mid 19th cent.