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VERB
获得；博得；赢得
If a person or place gains something such as an ability or quality, they gradually get more of it.
例句
Students can gain valuable experience by working on the campus radio or magazine...
学生们在校广播台或校刊工作能够获得宝贵的经验。
While it has lost its tranquility, the area has gained in liveliness.
虽然该地区失去了往日的宁静，但是却有了生气。
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VERB
（从…中）受益,获益,得到好处
If you gain from something such as an event or situation, you get some advantage or benefit from it.
例句
The company didn't disclose how much it expects to gain from the two deals...
这家公司未透露这两笔交易的预期获利情况。
There is absolutely nothing to be gained by feeling bitter..
心怀怨愤是绝对没有好处的。
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VERB
增加（体重、速度等）
To gain something such as weight or speed means to have an increase in that particular thing.
例句
Some people do gain weight after they stop smoking...
一些人戒烟后体重确实会增加。
The BMW started coming forward, passing the other cars and gaining speed as it approached...
那辆宝马车开始赶上来，超过了其他车辆并且在逼近的时候开始加速。
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VERB
（尤指经努力）获得，取得
If you gain something, you obtain it, especially after a lot of hard work or effort.
例句
They realise that passing exams is no longer enough to gain a place at university...
他们认识到现在仅仅是考试通过，并不能确保进入大学。
Their efforts helped the hostages gain their freedom.
他们的努力帮助人质获得了自由。
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PHRASE
为了获得利益；为了获得好处
If you do something for gain, you do it in order to get some advantage or profit for yourself, and for no other reason.
例句
...buying art solely for financial gain.
纯粹为了赚钱而购买艺术品
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PHRASE
（想法、理想等）越来越流行，逐渐为人接受
If something such as an idea or an ideal gains ground, it gradually becomes more widely known or more popular.
例句
There are strong signs that his views are gaining ground...
各种明显的迹象显示他的观点越来越受欢迎。
The Christian right has been steadily gaining ground in state politics.
基督教右翼组织在国家政治中逐渐获得越来越广泛的支持。
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PHRASE
赢得时间；争取时间
If you do something in order to gain time, you do it in order to give yourself enough time to think of an excuse or a way out of a difficult situation.
例句
I hoped to gain time by keeping him talking.
我希望让他一直说下去以争取时间。