bikeon Basic wordsalso onCEFR Elementary (A2)? CEFR Intermediate (B1)? 摩托车,脚踏车 biker biker(noun) 摩托车骑士,骑自行车的人 bikers bikers(noun) 摩托党,摩托车手,飞车党,骑士 bikes bikes(noun) 行车(bike的复数形式) biking biking(verb) 骑自行车(bike的现在分词形式) bike bike(noun) 摩托车,脚踏车 Forms nounverb biker biking bikers bikes bike