motor cycle 短语 词形变化 motor cycles 复数 释义与例句 n. 1. Uncommon form of motorcycle. 词汇关系 名词 同义词 1 bike 上位词 1 motor vehicle 下位词 5 motorbike scrambler minibike dirtbike trail bike 部分词 5 kickstart kickstand kick-starter mudguard splashguard