穿越时空明月郡主2:3-year old teacher need for pre-school. Experience preferred.如何翻译成中文?

3-year old teacher need for pre-school. Experience preferred.如何翻译成中文? 16-YEAR-OLD BOY 3(1/2)-year-old 是不是3岁半的意思 I have an 18-year-old sister. 关于four－year－old He is __,and he has__sister.A.ten years old,an eight-year-old B.ten-year-old,eight year old How old is your English teacher?的同义句是什么？？ the old year has pasted还是past\passed your ten year-old brother is the only boy among 1."10岁的"ten-year-old,换ten-year old 行不？2.“5米长的”five-metre long能说成five-metre-long?