1·The baby is three months old.
这婴儿三个月大了。
—— 《牛津词典》
2·The permit runs for three months.
许可证的有效期为三个月。
—— 《牛津词典》
3·The ticket is good for three months.
这张票三个月内有效。
—— 《牛津词典》
4·The last three months have been hell.
过去的三个月真受罪。
—— 《牛津词典》
5·She joined the company three months ago.
她三个月前进了这家公司。
—— 《牛津词典》
6·Meter readings are taken every three months.
每三个月查一次表。
—— 《牛津词典》
7·Three months after his death, she still felt empty.
他死后三个月她仍然感到心里很空虚。
—— 《牛津词典》
8·The trial is expected to continue for three months.
预计审判要持续三个月。
—— 《牛津词典》
9·You could learn the basics in, let's say , three months.
比方说，三个月你就可以掌握基本知识。
—— 《牛津词典》
10·He was abandoned by his father when he was three months old.
他3个月大的时候被父亲遗弃了。
—— 《柯林斯英汉双解大词典》