每当老师表扬我们小组作的很棒，也是我们最开心的时候。
It is the happiest moment of my life when we got approval from teachers.
他作手势到小组的其它部分。
报告人作简短评论。小组讨论。
对此诊断小组没有作任何的测试来解释这个非常重要的问题。
No testing was done to find out, but this is a very important issue.
对此诊断小组没有作任何的测试来解释这个非常重要的问题。
No testing was done to find out, but this is a very important issue.
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