A car does not need a fifth wheel.

一辆车通常不需要第五只轮子。

Let's listen to Jonathan and Anna talk about being a fifth wheel.

我们听一听Jonathan和Anna的对话，听他们是怎么描述第五只轮子的。

They can be called a fifth wheel. A car only needs four wheels to operate. So, the fifth wheel is unnecessary.

他们可以被称为多余的人（a fifth wheel）。一辆车只需要四个轮子就能开动。所以，第五个轮子是没必要的。

If someone is a fifth wheel, they may feel like an unimportant part of a group, usually a group of couples.

如果称一个人是第五只轮子的话，他们会觉得是一个团体里不受重视的一部分，通常是在夫妻档的团体中。

They’d made her feel like a fifth wheel.

【fifth，fifthly】他们让她感觉像个多余的人。