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1·It's hard to believe that half the class couldn't complete the three-thousand-meter race, isn't it?

很难相信班上有一半人都不能完成三千米赛跑，不是吗？

2·Half the class is making bets.

全班一半的同学都在打赌。

3·Half the class won't come.

一半的同学不会来。

4·If we have it today, half the class won't come.

如果我们今天开聚会，全班有一半的同学将不来参加。

5·If we have the party tomorrow, half the class won't come.

如果我们明天开聚会，半个班都到不了。

6·Morning, afternoon for half the class also go to see a movie.

上午还上半天课，下午全校一起去看电影。

7·By the third week of class, even with her head start, Esme was again behind half the class.

到课程的第三周，恰好开始头部训炼，艾思慕又落后至班上的中等成绩。

8·About half of U.S jobs are at high risk of being automated, according to Oxford study, with the middle class disproportionately squeezed.

牛津大学的研究表明，美国的工作中约有一半处于被自动化替代的高风险中。

9·Half of the students in our class like music.

我们班一半的学生喜欢音乐。

10·Central heating was present in every upper-middle class home by the second half of the 19th century.

到19世纪下半叶，中上层阶级家庭都用上了中央供暖。