/prɪ'zju:m; [US] -'zu:m; prɪ`zum/
v
1 [Tf, Cn.a, Cn.t] suppose (sth) to be true; take (sth) for granted 假定（某事物）是事实; 认定（某事物）; 假设; 推测
*I presume that an agreement will eventually be reached. 我想最终是会达成协议的.
* `Are the neighbours away on holiday?' `I presume so.' ｀邻居们去度假了吗?＇｀我想是的.＇
* In English law, an accused man is presumed (to be) innocent until he is proved guilty. 根据英国的法律, 被告未经证明有罪即认为是清白的.
* Twelve passengers are missing, presumed dead. 十二名乘客失踪, 据信已经死亡.
2 [It] venture to do sth; be so bold as to do sth 冒昧地做某事; 胆敢做某事
*I won't presume to disturb you. 我不敢打扰你.
* May I presume to advise you? 我可以冒昧向你进一言吗?
3 (phr v) presume on sth (fml 文) make a wrong use of sth; take unfair advantage of sth 不正当地利用某事物; 占某事物的便宜
*presume on sb's good nature, eg by asking for help 利用某人的好心肠（如请求帮助）.

v
[Date: 1300-1400; Language: French;Origin: présumer, from Latin praesumere, from sumere 'to take']
[T]
to think that something is true, although you are not certain
= assume
　Each of you will make a speech, I presume?
　'Are his parents still alive?' 'I presume so .'
presume that
　I presume we'll be there by six o'clock.
presume sb/sth to be sb/sth
　From the way he talked, I presumed him to be your boss.
be presumed to do sth
　The temple is presumed to date from the first century BC.
[T]
to accept something as true until it is shown to not be true, especially in law
= assume
　We must presume innocence until we have evidence of guilt.
be presumed dead/innocent etc
　Their nephew was missing, presumed dead.
[I]formal
to behave without respect or politeness by doing something that you have no right to do
presume to do sth
　I would never presume to tell you what to do.
[T usually in present tense]formal
to accept something as being true and base something else on it
= presuppose
　The Ancient History course presumes some knowledge of Greek.
presume that
　I presume that someone will be there to meet us when we arrive.
presume on/upon sb's friendship/generosity etc
to unfairly ask someone for more than you should, because they are your friend, are generous etc
　It would be presuming on his generosity to ask him for money.