I didn't get home from the lab until midnight.
直到半夜我才从实验室回家。
Yes, to get away from the lab someone might sit there but it's mostly empty.
不错，有人为了逃离实验室会在那坐一会儿，但多数时候那里空无一人。
He's stranded here at the lab and can't get home.
他现在困在实验室，没法回家了。
Of course, it is possible to get a grade lower than an a even if Lab 3 is done.
当然，即使你做了实验3，也有可能得到A以下的分数。
If you are absent from the lab more than one hour, get permission first.
如果离开实验室超过1个小时，必须事先请假并得到允许。
If you are absent from the lab more than one hour, get permission first.
如果离开实验室超过1个小时，必须事先请假并得到允许。
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