gain on的用法和樣例：
例句
- I got less than I wanted when I sold my car but I made a good profit on the caravan-what you lose on the swings, you gain on the roundabouts.
我的汽車沒能賣出好價，但我的有大篷的卡車卻賣出了價錢——真是失之東隅，收之桑愉。 - The sea is gaining on the land.
海水逐漸侵蝕陸地。 - What you gain on the swings you'll probably lose on the roundabouts.
有所得也可能有所失。 - The sea was gradually gaining on the buildings, which at length almost entirely disappeared.
大海不斷地侵蝕著這些建築物，最後它們幾乎完全不見了。
辭彙搭配
- lose on the swings what you gain on the roundabouts 轉木馬得來打鞦韆失去...
- gain ground on 逼近(侵入)
