incidental expenses造句

1、The incidental expenses of cars in this city are expensive.
这个城市汽车的附加费用很昂贵。

2、Registering with the Hotel and all room and incidental expenses will be paid upon check-out.
所有的房费和杂费会在我退房时付清。

3、Keep this money for incidental expenses on the way.
你留着这点钱在路上零花吧！