assumption /əˈsʌmpʃən/ noun plural assumptions
plural assumptions
Learner's definition of ASSUMPTION
1
[count] : something that is believed to be true or probably true but that is not known to be true : something that is assumed假定；假设：臆断 -
I made the assumption that he was coming, so I was surprised when he didn't show up.我原以为他要来，所以他没露面令我感到很意外。
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He will come home tomorrow. At least, that's my assumption.他明天会回家。至少我是这么臆测的。
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Many scientific assumptions about Mars were wrong.很多有关火星的科学假设都是错误的。
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We are operating on/under/with the assumption that the loan will be approved. [=we are assuming that the loan will be approved; we are behaving as though we know that the loan will be approved]我们正在以这笔贷款能被批准这一假设为前提进行运作。
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I'm telling you our arrival time on the assumption that you will check to see whether or not our flight is on time before you come to the airport.我现在把我们到达的时间告诉你，前提是你来机场之前要先确认一下我们的航班是否准点。
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Her plan is based on the underlying assumption that the economy will improve in the near future.她的规划是基于经济在近期将会好转这样一个隐含假定。
2
[noncount] : the act of assuming something担任；承担: such as
a : the act of beginning a role, duty, etc.就职；任职 b : the act of taking or beginning to have power, control, etc., in a job or situation取得；获得 c : the act of accepting a responsibility, debt, etc.（责任、债务等的）承担