误He goes to school with bicycle every day.
正He goes to school by bicycle every day.
他骑车回家了。误He went home by his bicycle.
正He went home by bicycle.
他们骑车去那儿的。误They went there by bicycles.
正They went there by bicycle.
析by bicycle是固定搭配,表示抽象的“交通方式”,其中by是by means of(以…方法)的意思,不可换用其他介词。其后的bicycle只能用单数,且其前不可加限定词。