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The police are concerned for the safety of the 12-year-old boy who has been missing for three days.
那个12岁的男孩失踪三天了,警方对他的安全感到担忧。
《牛津词典》
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The police are concerned for the safety of the 12-year-old boy who has been missing for three days.
那个12岁的男孩失踪三天了,警方对他的安全感到担忧。
《牛津词典》