much of the ant's time is spent on combing bits of dirt and debris off their bodies这句话哪里错了

问题描述:

much of the ant's time is spent on combing bits of dirt and debris off their bodies
这句话哪里错了

spend没有被动语态

期待中!

on->in或去掉in
spend的用法:
spend on sth.
spend ..in doing sth
in可以省略

ants' 蚂蚁复数