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1·Also, work hard on your math. Maybe Wang Hai can help you.

还有，要努力学习数学。也许王海可以帮助你。

2·Even though I work hard on my study, I make no progress. I feel sad.

即使我努力学习，我也没有进步。我感到悲伤。

3·I will work hard on my dream.

我会为自己的梦想而努力的。

4·Finally, you should work hard on it.

最后，你应该努力学习。

5·You work hard on all your committees.

而你总是在各种委员会忙。

6·That's right. We must work hard on it.

是的。我们必须努力学好英语。

7·I work hard on my flights and in my hotel room?

我在出差的飞机上以及酒店房间里拼命工作。

8·I work hard on it.

我努力工作。

9·Work hard on improving your living quarters.

努力改善你的居住环境。

10·The twins are going to work hard on English.

这对双胞胎下学期要努力学英语。