The lake yielded up a poor fish harvest last year because of pollution.这个湖因为污染去年渔业歉收。The heron waited patiently for the next poor fish to come within reach of his beak.鹭耐心地等待着下一条口中餐游到嘴边。He played the poor fish until it rolled, belly up, from exhaustion.他让那可怜的鱼儿挣扎，直到肚子朝天、精疲力竭为止。