fifth wheel

• n. 第五个轮子；半拖车接轮；转向轮；备用轮；多余的人（或物）

英英释义

Noun:

1. someone or something that is unwanted and unneeded

2. an extra car wheel and tire for a four-wheel vehicle

3. a steering bearing that enables the front axle of a horse-drawn wagon to rotate

例句

用作名词 (n.)

1. This wheel engages with that wheel.
   这个轮子与那个轮子衔接。
2. Phyl got one wheel of the pram caught in something.
   菲儿推的婴儿车有一个轮子被什么东西夹住了。
3. The poor old man seems to be a fifth wheel in the family.
   那位可怜的老人似乎是家里多余的人。

词汇搭配

• fifth wheel 第五个轮子

近反义词

【近义词】

• spare 备用的
• deadwood 枯枝