词典释义：
释义
hold tightly
紧紧握住，抓着不放
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he hung on to the back of her coat. 他紧紧抓着她大衣后襟。
〈非正式〉（在困难情况下）坚持不懈，不放弃
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United hung on for victory .联队为了胜利锲而不舍。
〈非正式〉等一会儿
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hang on a minute—do you think I might have left anything out? 等等——你觉得我可能遗漏了什么吗？
(on the telephone)remain connected until one is able to talk to a particular person
（电话）不挂断。
be contingent or dependent on
有赖于，取决于
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the future of Europe should not hang on a referendum by the French. 欧洲的未来不应取决于法国人的一次全民公决。
listen closely to
倾听，注意听
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she hung on his every word .她全神贯注地倾听他的每一句话。
