gain on

详细解释:逼近, 超过, 侵蚀

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。