And then you would sit on the planes and serve snacks and help clean the planes.

然后你会坐在飞机上，提供小吃并帮助清洁飞机。

So the world's biggest aircraft makers are working on cleaner planes, but they're not ready yet.

因此，世界上最大的飞机制造商正在研发更清洁的飞机， 但他们还没有准备好。

One of those batteries caught fire while the plane was being cleaned on the ground in Boston and it took crews more than an hour and a half to control the blaze.

当飞机在波士顿清理时，一块电池起火了，机组人员花了一个半小时才控制住大火。