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动词词组give sb./oneself away,意思是“暴露了自己(的真实情况或身份);出卖了”(to reveal sb./oneself intentionally or without meaning to; to betray sb)
例句:
Your American accent gave you away. 你的美国口音让你露了馅。
He would never allow his family to give his friends away to the Nazis.
他决不让家人向纳粹分子出卖朋友们。