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- 轮子安正了吗?
Is the wheel true?
- 轮子是绕轴旋转的。
A wheel revolves round/on its axis.
- 螺栓折了,轮子脱了出来。
The bolt sheared (off) and the wheel came off.
- 这些螺帽和螺栓把轮子固定住了。
These nuts and bolts hold the wheels on.
- 汽车的轮子开始转动。
The wheels of the car began to turn.
- 这些轮子须同速转动。
The wheels must synchronize as they revolve.
- 独轮手推车有一个轮子。
The wheelbarrow has one wheel.
- 一辆汽车有四只轮子。
There are four wheels in a car.
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