车掌 meaning in Chinese

captain
conductor
guard

The conductor wouldn ' t let me off until i ' d paid the fare
车掌不让我下车，直到我付了车钱。
Conductor : no sir , it belongs to the railroad company
车掌：不是，先生。这车厢属于铁路局的。
The train conductor punched our tickets
列车车掌剪了我们的票。
The conductor rushed back and said , " dr . einstein , dr . einstein , don ' t worry , i know who you are . no problem . you don ' t need a ticket . i ' m sure you bought one .
车掌冲回去，说：爱因斯坦博士，爱因斯坦博士，不要担心，我认识你，没有问题，你不需要找车票了，我确定你买了车票。