Fifth wheel
n. 多余的事物或人
🧩 词语组成解析
wheel
[wil]
n. 轮子;旋转;Wheels 汽车;有…轮子的汽车（或自行车等）;
vi. 转动，旋转;突然转变方向;
vt. 推;拉（车）;使变换方向;（使）迅速转身;
🗣️ 情景例句
I'll need a taxi to the train station. Could you find one for me?
我想到火车站。能为我叫辆出租车吗？
At times, the smell from the gutter can be rank.
从下水沟时常冒出刺鼻的气味。
And I can't find her passport anywhere. So she must have taken that too.
而且我在哪都找不到她的护照，所以她一定也带去了。