便下课
Then class is over.
以上为机器翻译结果，长、整句建议使用 人工翻译 。
随后他快速走到教室的前面，没过多久便宣布下课。
He then walked quickly to the front of the room and, within moments, dismissed the class.
youdao
一到下课，便现出真面目来了。
But once the class is over, I reveal my ture face.
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