not doubting or seeming to doubt what one believes, knows, etc. confident that one is right
definitely going to do sth; certain to do sth
"felt certain of success"
"was sure (or certain) she had seen it"
"was very sure in his beliefs"
"sure of her friends"
"be certain to disconnect the iron when you are through"
"be sure to lock the doors"
"he was certain to fail"
"his fate is certain"
"In this life nothing is certain but death and taxes"
"he faced certain death"
"sudden but sure regret"
"he is sure to win"
"a sure footing"
"was on sure ground"
"a quick and certain remedy"
"a sure way to distinguish the two"
"wood dust is a sure sign of termites"
"a sure (or trusted) friend"
"a sure (or true) sign of one's commitment"
"a sure hand on the throttle"
"indisputable (or sure) proof"
"the results are surely encouraging"
"she certainly is a hard worker"
"it's going to be a good day for sure"
"they are coming, for certain"
"they thought he had been killed sure enough"
"he'll win sure as shooting"
"they sure smell good"
"sure he'll come"
Loaded pistols were served out to all the sure men.
出自： R. L. Stevenson
误 I'm sure of that he will take sole responsibility for the accident.
正 I'm sure that he will take sole responsibility for the accident.
析 be sure of的宾语是that从句时,介词 of常省略。
误 I am sure that he must have come back from Beijing.
正 He must have come back from Beijing.
析 must 用来表示讲话人肯定的推测,而 I am sure 也是讲话人用来表明自己的肯定的看法的。因此 must 和 I am sure 用在一起就语义重复,可把 I am sure 删去。
误 It is sure the report is false.
正 It is certain that the report is false.
误 I don't know with sure that he's dead.
正 I don't know for sure that he's dead.
析 for sure表示“肯定地”,是习惯说法,介词for不能用with替代。
误 Please make sure that the house will be properly locked.
正 Please make sure that the house is properly locked.
析 make sure是动词短语,通常用于祈使句中,表示“肯定”“设法做到”,后面的从句中往往用一般现在时表示将来,强调某一愿望或要求一定要实现。
误 I am quite sure for it.
正 I am quite sure of it.
析 be sure of〔about〕 意为“对…有把握”“确信”,是句子的主语本身持有的态度,介词不可用for。
误 So long as the Japanese people keep on fighting they must win in the end.
正 So long as the Japanese people keep on fighting they are sure to win in the end.
析 must表示“命令”“义务”“责任”,或用以推测未知的事情,上面的句子表示将来肯定会取得某种结果,不可用 must,应用sure。