语音讲解：
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　　Pull through

　　脱险；渡过难关

　　to recover from some difficulty or serious illness

　　渡过难关或从危急病况中脱险。

　　The infant pulled through miraculously after having been severely burned.

　　这个婴儿被严重灼伤，但却奇迹地渡过难关。