（上文）Wasn't there some other theory to do with dust when the module landed,
问题描述：
（上文）Wasn't there some other theory to do with dust when the module landed,
翻译下面这句..
that there should have been more dust,or something?
回一楼，那为啥要用have been,have不就行了吗？
答
（那里）本应该有一些尘埃或其他类似的东西呀?