Put a metal ring on the leg of (a bird) to identify it, or in the nose of (a bull, etc).

给(鸟)的腿套上金属环(以供识别)；给(牛等)戴鼻圈。

youdao

Put a metal ring on the leg of (a bird) to identify it, or in the nose of (a bull, etc).

给(鸟)的腿套上金属环(以供识别)；给(牛等)戴鼻圈。

youdao