Certain
定义
(形容词) 确定的; 毫无疑问
例句
“I'm certain we'll arrive on time.”
“Certain people never answer emails after 6 p.m.”
有些人晚上6点后就从不回邮件。
“The lock feels certain to jam again.”
这把锁肯定又会卡住。
“Are you certain that's her car out front?”
你确定外面那辆是她的车吗?
“I'm certain the train leaves at 8:12.”
我肯定那趟火车8点12分发车。
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