150.a priori 未经观察分析地，既定地
Definition: intuitively known without examination or analysis
Example: There's no a priori reason to think your expenses will remain the same in a larger city.
151.ad hoc 临时安排的
Definition: done onlywhen needed for a specific purpose, without planning or preparation
Example: To keep thepolice force on the streets, the mayor and the city council made an ad hocdecision to increase the salaries of law enforcement officers by ten percent.
152.bona fide 真正的
Definition: Honest;genuine; acting without the intention of defrauding
Example: In order toreceive a refund for your returned purchase, you will need to show the salesclerk a bona fide receipt for the item.
153.percapita 每人，按人分配的
Definition: based oncalculations that show the average amount for each person affected
Example: The country’srecent wealth was indicated by a rise in per capita income.
154.status quo 现状
Definition: thepresent situation, or the way that things usually are
Example: The newcompany president has plans to change the status quo and turn the business intoa new organization.
155.viceversa 反之亦然
Definition: theopposite of what has been said
Example: Should I cometo your house for dinner or vice versa?
156.ad-lib 即兴演讲
Definition: to act orspeak without preparing, to improvise
Example: I lost thenotes for my talk and had to ad-lib.
157.drop out of 中途退出
Definition: to leavesomething such as an activity before youhave finished what you intended to do
Example: She wasinjured in the first round and had to drop out of the competition.
158.lose out to 输给…
Definition: to lose acompetition to someone or something
Example: Bill lost outto Sally in the election for student government president in a very close race.
159.bear the stamp of something 具有..的迹象
Definition: Be clearlyidentifiable with
Example: Every work ofmaster watchmaker inevitably bears the stamp of his craftsmanship.
160.strip away 去掉
Definition: to removeor peel something from someone or something.
Example: The emergencyroom nurse strips away the clothing from the burn victim.
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