题目内容
6. come true
7. at the same time 8. be busy with
9. in his free time 10. be worried about
6. 实现 7. 在同时 8.忙于 9. 在他空闲时间 10. 着急
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题目内容
6. come true
7. at the same time 8. be busy with
9. in his free time 10. be worried about