彗星是由“脏冰”所组成，而不是像小型那样由固体岩石组成，所以只含有少量的铱。

Comets consist of "dirty ice", rather than solid rock, and so contain little iridium.

youdao

然后宝宝可以像吃多少固体食物就吃多少固体食物。

Babies can have as much of the solids as they want.

youdao

然后宝宝可以像吃多少固体食物就吃多少固体食物。

Babies can have as much of the solids as they want.

youdao