1. 跑得比...快;逼近：from time to time 时常,有时,不时 | gain on 跑得比...快;逼近 | gang together 结合在一起;符合
2. 接近：gain of antenna 天线增益 | gain on 接近 | gain reduction indicator 增益衰减指示器
3. 逼近：gain in 增长 | gain on 逼近 | gain one's ends 达到目的
4. 侵入,逼近：191.full of 充满,旺盛. | 192.gain on 侵入,逼近. | 193.get along 进行,过活,相得.
1. 接近，逼近（前面的人或事物）
If you gain on someone or something that is moving in front of you, you gradually get closer to them.
e.g. In some places he was quicker and at others I'd gain on him...
他在某些地方比我快，而我会在其他地方追上他。
e.g. The Mercedes began to gain on the van.
那辆奔驰开始逼近小货车。