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[机] 矿层的剥土
🗣️ 情景例句
May I ... may I help?
我能……我能帮上忙吗？
We must arrive there on time.
我们必须准时到那儿。
I'm afraid I didn't, officer.I must have been dreaming.
恐怕我没有看见，警官。我一定思想开小差了。