Some people drop litter about. We can call them litter bugs. The worst kind of litter bug is the person who spits chewing gum about after use.是什么意思_Some people drop litter about. We can call them litter bugs. The worst kind of litter bug is the person who spits chewing gum about after use.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句