key money的用法和樣例：
例句
用作名詞 (n.)
- You'll need money for incidentals such as tips and taxis.
你將需要準備好付小費和乘出租車之類的雜項開銷。 - He felt embarrassed at not having enough money for a tip.
他因為沒錢付小費而感到難堪。
詞匯搭配
- key money (房租之外的)小費...
