back wheel造句怎么写

an early bicycle with a very large front wheel and small back wheel.

Make sure that the axle of the back wheel goes in between the spokes of the front wheel.

Then lay your front wheel on the right side of the case. Make sure that the axle of the back wheel goes in between the spokes of the front wheel.

It has a unique design: its paired back wheels splay outward when the bike is at rest, and are drawn inward when the bike is in motion, to work more like a single wheel.

Start with modeling the back wheel. Select the2 curves seen below.

I'll need a spanner to change the back wheel.

The back wheels of the plane touched the runway, but it became unstable when the front wheel touched down, he said.