only two wheels
只有两个轮子
以上为机器翻译结果，长、整句建议使用 人工翻译 。
And in a motorcycle, you only have two wheels.
开摩托车时，你只有两个轮子。
I'm afraid of 实战 - SpeakingMax英语口语达人
One failed in July 2012, leaving it with only two functioning wheels at this time, Sobeck said.
CNN: Planet-hunting Kepler spacecraft in trouble
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