incidental expense

n. 杂费

例句与用法：

An incidental action performed by an actor on the stage to fill a pause between lines or to provide interesting detail.

(演员的)动作演员在舞台上为了填补背台词间的停顿和提供有趣的细节所做的附加动作

Fatigue is incidental to a journey in a strange land.

在陌生的地方旅行，容易疲劳。

The incidental expenses of cars in this city are expensive.

这个城市汽车的附加费用很昂贵。

You should know the additional responsibilities that are incidental to the job.

你该知道做这项工作要承担额外责任。