Some recycling machines have the option of automatic dye injection which is very handy.

有些循环使用的机器中可以选择自动注入着色剂，因为它非常方便。

youdao

Some recycling machines have the option of automatic dye injection which is very handy.

有些循环使用的机器中可以选择自动注入着色剂，因为它非常方便。

youdao