妈妈给宝宝戴上围兜，防止吃饭时弄脏衣服。

Mom put a ___bib on the baby to keep clothes clean while eating.

宝宝的围兜弄脏了，需要换一个干净的。

The baby's ___bib got dirty and needs to be changed.

这只野鸭胸前有一块醒目的白色羽毛。

The wild duck has a striking white ___bib on its chest.