1. 轮;轮子;车轮
    The wheels of a vehicle are the circular objects which are fixed underneath it and which enable it to move along the ground.

    e.g. The car wheels spun and slipped on some oil on the road.
           路面上有些油，汽车车轮经过时直打滑。

2. 机轮
    A wheel is a circular object which forms a part of a machine, usually a moving part.

    e.g. ...an eighteenth century mill with a water wheel.
           一个带有水轮的18世纪磨粉机

3. 方向盘
    The wheel of a car or other vehicle is the circular object that is used to steer it. The wheel is used in expressions to talk about who is driving a vehicle. For example, if someone is at the wheel of a car, they are driving it.

    e.g. My co-pilot suddenly grabbed the wheel...
           我的副驾驶突然抓住了方向盘。
    e.g. Curtis got behind the wheel and they started back toward the cottage...
           由柯蒂斯开车，他们启程返回小屋。

4. 汽车
    People sometimes refer to a car as wheels .

    e.g. 'Do you own a house?' — 'No. But I have wheels.'
           “你有房吗？”——“没有，但我有车。”

5. 推(带轮子的物体)
    If you wheel an object that has wheels somewhere, you push it along.

    e.g. He wheeled his bike into the alley at the side of the house...
           他把自行车推进了房子旁的小巷中。
    e.g. They wheeled her out on the stretcher.
           他们用担架床把她推了出去。

6. (动物、鸟禽等)转圈，旋转，盘旋
    If something such as a group of animals or birds wheels, it moves in a circle.

    e.g. A flock of crows wheeled overhead.
           一群乌鸦在头顶上盘旋。

7. (因惊讶、震惊或生气)突然转身
    If you wheel around, you turn around suddenly where you are standing, often because you are surprised, shocked, or angry.

    e.g. He wheeled around to face her...
           他突然转过身来面对她。
    e.g. She wheeled sharply and headed for the check-out counter.
           她突然转身，朝收银台走去。

8. (尤指多次发生相同的情形)命运之轮
    You use wheel in expressions such as the wheel of fortune to refer to the changes that take place in life, especially when you are referring to the fact that the same situations occur more than once.

    e.g. The wheel of fortune will swing round again; in politics, it always does...
           风水会轮流转；在政治上，它总是如此。
    e.g. In his view the wheel of history could not be turned back.
           在他看来历史的车轮不能倒退。

9. (组织或系统的)运作方式
    People talk about the wheels of an organization or system to mean the way in which it operates.

    e.g. He knows the wheels of administration turn slowly.
           他知道行政机关办事效率低。

10. (各种影响、原因和行动交织在一起的)错综复杂的情况
    If you say that there are wheels within wheels, you mean that there are a number of different influences, reasons, and actions which together make a situation complicated and difficult to understand.

    e.g. Our culture is more complex than he knows. Wheels within wheels.
           我们的文化比他所知道的要复杂得多，相当庞杂。

11. see also: Catherine wheel;meals on wheels;potter's wheel;spare wheel;spinning wheel;steering wheel;water wheel