名词
中文翻译：备用轮胎
同义词：
['back-up tyre', 'spare wheel例句：1. We need to change the spare tyre on our car before we go on a long journey.（在我们长途旅行之前，我们需要更换汽车上的备用轮胎。）']
例句：
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1. We need to change the spare tyre on our car before we go on a long journey.
在我们长途旅行之前，我们需要更换汽车上的备用轮胎。
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2.The mechanic replaced the spare tyre with a new one.
机械师用一个新的备用轮胎替换了旧的。
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3.The driver had to use his own spare tyre as the main one was flat.
司机不得不使用他的备用轮胎，因为主轮胎坏了。