(1)by the way 常用作状语,意为"顺便问一下","顺便说一下"。 By the way, how old are you? 顺便问一下,你多大了? (2)on the way "在……的路上",后接名词时需加介词to,后接副词home、here、there时不加to。 He bought a pen on his/ the way to school. 他在上学的路...