His suitcase is empty There is a lot of room in it,

题目

His suitcase is empty There is a lot of room in it,
His suitcase is empty There is a lot of room in it,
in it又当什么讲

答案

意思：他的行李箱很没装什么东西,里面还有很大的空间（可以放东西）.
in it 是指在行李箱内.