drop litter和leave litter的区别是什么

drop litter和leave litter的区别是什么 请问drop litter和throw litter ,throw litter about 的区别, 谢谢! litter和rubbish的区别 a litter和litter a few和few的区别 "a litter"和"litter"有什么区别? a bit 和a litter的区别是什么? a litter与a litter的区别 trash litter和junk的区别 so a little 和litter的区别 rubbish garbage和litter的区别 用 drop litter造句 Just a litter和Only a litter有什么区别?