蚕茧 的中文句子和英文句子

孩子们撕开蚕茧看看里面有没有蛹。

The children tore the cocoon open to see if there was a pupa.


蚕茧是由昆虫制造的一种由丝组成的外包层。

A cocoon is a kind of silk covering made by an insect.