12岁的英文怎么拼写

12岁的英文12 years old；

例句

The patient was a boy, 12 years old.

患儿男性，12岁。

He is 12 years old and he has been going to school for six years.

他十二岁而且已经上了六年学了。

The Sleep Habits of Children 4 to 12 Years Old in Guangdong.

广东澄海市4-12岁儿童睡眠习惯及其影响因素。

The inspection time of 8-12 years old supernormal and normal children.

8~12岁超常与常态儿童的.检测时比较。

Relationship between Peer Acceptance and Social Strategies in 10~ 12 Years Old Children.

10～12岁儿童的同伴接纳类型与社交策略。