有时你邀请人吃饭但他却提前一个半钟到。
Somebody coming a half hour early when you invite them to dinner.
研究的发起者说美国的人们在失去睡眠，现在的美国人比40年前的少睡一个半钟到2个钟。
Study authors say people in the United States are losing sleep, with Americans sleeping one and a half to two hours less a night than we did 40 years ago.
本以为动员大会持续一个半钟，但令人惊喜的是，半个钟头后我们就能出来呼吸新鲜空气了。
Thought mobilization meeting for one and a half minutes, but the surprise is that half an hour later, we will be able to breathe fresh air has come out.
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