thresher

n.打谷者,打谷机,[鱼]长尾鲨

（1）脱粒机；（2）长尾鲨；

名词；

1、The farmer used a thresher to separate the grains from the stalks.
农民使用脱粒机将谷物与秆分离。
2、The thresher is known for its long tail and distinctive hunting technique.
长尾鲨因其长尾巴和独特的捕食技巧而闻名。