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She stamped out the letters'sOS'in the snow.她用脚在雪地踩出'sOS'这三个字母.The ferry did not even have time to send out an SOS.渡船甚至连发出紧急呼救信号的时间都没有。to send an SOS发出紧急呼救信号So they were asked to draw their SOS famili...
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to send an SOS发出紧急呼救信号She stamped out the letters'sOS'in the snow.她用脚在雪地踩出'sOS'这三个字母.So they were asked to draw their SOS families.所以他们被告知的是书画SOS的家庭....
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abbr.si opus sit (Latin=when needed) （拉丁语）必要时，silicon-on-sapphire 硅-蓝宝石（技术），save our savings 节约我们的储蓄，save our streets 保留我们的街道...