tyre wheel tube的区别在哪里?
Pump up this tyre Sandy.It is very flat.What are you doing ,Sandy?I'm pumping up this tyre.
Whew!I'm tired.It's still alive.Let's take the tyre off the wheel.Put the tube in this basin,Sandy.
Look at those bubbles.There's a puncture in this tube.
请结合这篇文章中的那三个词解释.
顺便翻译.有图片的话就更加谢谢啦!
still flat.打错啦.