The "hook" is a fish hook.

“钩”在这里指的是鱼钩。

youdao

He is baiting the fish hook with bait made from earthworms.

他在鱼钩上挂上用蚯蚓制成的鱼食做诱饵。

youdao

A fish hook has a barb to prevent the fish from escaping after being hooked.

鱼钩上都有一个倒钩以防上了钩的鱼逃走。

youdao

A fish hook has a barb to prevent the fish from escaping after being hooked.

鱼钩上都有一个倒钩以防上了钩的鱼逃走。

youdao