送交者: 蓝隼 于 2012-05-17, 16:41:52:

回答: 难道摔下来不是危险？ 由 steven 于 2012-05-17, 16:33:34:

• danger implies a potential event, not a certain event. - steven (163 bytes) 2012-05-17, 16:50:00 (665635)

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