tricycle

漢語翻譯

英文解釋：

名詞 tricycle:

1. a vehicle with three wheels that is moved by foot pedals
   同義詞：trike, velocipede

例句：

1. Our son has just graduated from a tricycle to a proper bicycle.
   我們的兒子剛剛從騎三輪腳踏車過渡到騎普通腳踏車了。