1. I and my boyfriend next week to his hometown of Nanjing to betrothal, about one week back.
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This one has been checked out and it's due back in about a week.
这本已经被借了，预计在一个星期内会还回来。
Sorry. This one is on loan, it's due back in about a week. Do you want me to reserve it for you?
对不起，这本书已借出。大约一周后就该还回来了。你要我帮你预定吗？
The summer break would be from May to August. There is also Winter break for about three weeks (I will be back in Shanghai), a spring break and a fall break, both are one week long.
暑假则是五月到八月，还有大约两周多的寒假，各一周的春假及秋假。
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