if there are people in the meeting room ,you besupposed to k
if there are people in the meeting room ,you besupposed to knock before entering
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if there are people in the meeting room ,you are supposed to knock at the door before entering
be改为are
如果有人在会议室,进入前你应该敲门.
be改为are
如果有人在会议室,进入前你应该敲门.
1年前
10
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