今晚外出娱乐怎么样?
How about going out for fun tonight?
我们不能在教室吃东西。
We can't eat in the classroom.
让我们明天去公园吧!
Let's go to the park tomorrow!
他们每周五练习两小时钢琴。
They exercise two hours a week for five hours.
你们明天必须准时到达。
You must arrive on time tomorrow.
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