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历史:
CET-4 考研 IELTS GRE BNC: 11218 COCA: 10629
expend
ex·pend / Ik5spZnd ; Ik5spend /verb T
1. to use or spend a lot of energy etc in order to do something花费,耗费〔精力等〕:
expend energy / effort / time / resources etc
People of different ages expend different amounts of energy.不同年龄的人花费的精力就不一样大。
Manufacturers have expended a lot of time and effort trying to improve computer security.制造商花费了大量的时间和精力试图提高计算机的安全性。
expend sth in / on (doing) sth
A great deal of time and money has been expended on creating a pleasant office atmosphere.为创造舒心的办公环境已花费了大量的时间和金钱。

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