- obtain or secure (something desired, favourable, or profitable)获得, 得到, 取得（想得到的、有利的或有利可图的事物 ）：
victory was gained for the loss of just two wickets
仅以两名击球手被判出局为代价赢得了（板球赛的）胜利
with two objs their blend of acoustic folk pop gained them several chart hits.他们不用电声乐器把民歌曲调的流行音乐融合起来, 这使他们几次上了畅销唱片排行榜。
- reach or arrive at (a desired destination)到达（想要到的目的地）：
we gained the ridge.
我们爬上了山脊。
- no obj.
gain on
come closer to (a person or thing pursued)逼近, 接近（被追赶的人或物）： a huge bear gaining on him with every stride.
正步步向他逼近的一只大熊。
- archaic bring over to one's interest or views; win over〈古〉使…（转而）支持自己的利益; 使…（转而）信服自己的观点; 将…争取过来：
to gratify the queen, and gain the court.
讨好女王, 拉拢王室成员。
- increase the amount or rate of (something, typically weight or speed)增加某物的数量或比率（尤指重量或速度）：
she had gradually gained weight since her wedding.
结婚后她渐渐地发胖了。
- no obj. increase in value（价值）增长：
shares also gained for the third day in a row.
股票价格也连续第三天上涨了。
- no obj.
gain in
improve or advance in some respect改善, 提高： canoeing is gaining in popularity.
划独木舟越来越时兴了。
- (of a clock or watch) become fast by (a specific amount of time)（钟, 表）走快（特定量时间）：
this atomic clock will neither gain nor lose a second in the next 1 million years.
这原子钟在今后的100万年里既不会快也不会慢1秒钟。
- an increase in wealth or resources财富（或资源）的增长：
the mayor was accused of using municipal funds for personal gain
市长被控挪用市政基金为个人谋利
count noun water shares were showing gains of up to 21 per cent.水资源类股票上涨幅度达21%.
- a thing that is achieved or acquired获得的东西, 取得的进展：
the potential gain from rail privatization would be a more commercial railway.
铁路私有化所带来的潜在好处是铁路将变得更为商业化。
- mass noun the factor by which power or voltage is increased in an amplifier or other electronic device, usually expressed as a logarithm（常用对数表示的功率或电压的）增益。