barb

倒钩、倒刺

The fish hook has a tiny barb that prevents it from slipping out.

鱼钩上有个小倒钩，可以防止鱼脱钩。

讽刺、挖苦、带刺的话

She ended her speech with a barb aimed at her critics.

她在演说结尾丢出一句挖苦批评者的话。

羽枝生物

Each feather is made up of hundreds of tiny barbs.

每根羽毛都是由数百根细小的羽枝组成。

装倒钩于少用

The arrows were barbed to make them harder to pull out.

这些箭装上了倒钩，让人更难拔出来。