1、Bicycle属于vehicle(交通工具) 摩托车有几种说法:autobike、autocycle、motorcycle电瓶车有多种类型,包括——storage battery car 充电车accumulator car 蓄电池车battery car 直流电池车battery cart 直流电池送货车battery truck 电动搬运车 2. in this category 表示“在此范畴中”或“在此类型中” 3. drinking and driving 意思是“一边喝酒一边驾车”,属于动名词或现在分词,究竟是那种词性需要看它作什么成分,如: Drinking and driving is dange...