yearsold是什么意思,years是什么意思

he grew until he was two years old, and he ran all around the
每日一学| today years old是什么意思呢_英语学习_动物园_水族馆
= how old are you? 你多大了?
i'm five years old i'm four years old
冀教初中八年级英语下unit5 lesson39 clean cars课件