gain on的用法和样例：
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.
我的汽车没能卖出好价，但我的有大篷的卡车却卖出了价钱——真是失之东隅，收之桑愉。 - The sea is gaining on the land.
海水逐渐侵蚀陆地。 - 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.
大海不断地侵蚀着这些建筑物，最后它们几乎完全不见了。
词汇搭配
- lose on the swings what you gain on the roundabouts 转木马得来打秋千失去...
- gain ground on 逼近(侵入)
