词典释义：
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He is missing his front teeth due to a motorcycling accident in rural New York.
由于纽约郊区的一场摩托车事故，他的门牙掉了。
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The Road Rat is a Riding Club (RC) for managing the enjoyment of motorcycling.
道路鼠是一个骑马俱乐部（区局）负责管理的摩托车享受。
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The growing risk of collision with a car is making motorcycling more dangerous.
随着发生摩托车和汽车相撞风险不断增加，选择摩托车出行变得更加危险。
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Of course the danger of motorcycling also explains why many people dislike the sport.
当然，对摩托车的危险也解释了为什么很多人不喜欢这项运动。
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However, there are several things about motorcycling that the common citizen dislikes.
然而，大约有摩托车几件事情是普通公民不喜欢。
词根 motorize
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motorized adj. 摩托化的；机动化的 v. 使…机械化（motorize的过去分词）
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motorial adj. 运动的；运动神经的；引起运动的
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motorcycle n. 摩托车；机动车 vi. 骑摩托车
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motorbike n. 摩托车
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motoneuron n. 运动神经元
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motorboat n. 摩托艇，汽船
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motorcyclist n. 骑摩托车的人；乘机车者
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motorization n. 摩托化；动力化
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motorize vt. 使摩托化；使机动化