throw a sprat to catch a mackerel

例句：

1. 1. The fisherman caught a sprat to eat for dinner.
   渔民捕到了一条鳕鱼来晚餐。
2. 2. The fish market is full of different kinds of sprats.
   鱼市场里有很多种不同的鳕鱼。
3. 3. He threw a sprat to catch a mackerel, hoping to catch a bigger one next time.
   他扔了一条鳕鱼去钓大一点的鲭鱼，希望能下次钓到更大的。