much of the ant's time is spent on combing bits of dirt and debri_英语解答

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

人气：428 ℃　时间：2020-03-31 08:38:30

解答

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