The back wheel had to come off.

在后轮已经脱落。

youdao

I need a spanner to change the back wheel.

我要一个扳手来换掉后面的轮胎。

youdao

You need a bag which straps to a rack over your back wheel.

您需要一个袋子其中一个机架带你回轮。

youdao

It's a cliche--People say, let's not reinvent the wheel here, so let's go back to that.

人们会说这是陈词滥调了，咱们别在这白费口舌了，咱们还得从头说起。

耶鲁公开课 - 金融市场课程节选

On the back wheel: the small sprocket is top gear, the large sprocket is bottom.

BBC: Sport

But disaster struck for Reade when her front wheel appeared to clip the back wheel of Chausson, and she came crashing down.

CNN: France win BMX gold as Briton Reade crashes

Its body had been wedged behind a back wheel.

NEWYORKER: The Yellow