12岁的英文是：12 years old
years old ... 岁(年龄)
【双语例句】
1、Mark didn't shape up until he was thirty years old.
马克到三十岁时才振奋起来。
2、He is junior to me by two years.
他比我小两岁。
【相关短语】
1、庆祝12岁生日 celebrate the 12th birthday
2、我今年12岁 This year my 12-year-old
3、一个12岁的男孩 a 12yearold boy
4、它表示刘涛12岁 It said the 12-year-old Tao
5、今天是我12岁生日 Today is my 12th birthday
6、我12岁英语很差 My English is poor 12-year-old
7、那是我们不过12岁 we were 12 years old
8、教授4到12岁儿童 Professor4 to12 years old children
扩展资料：
【临近短语】
（1）、12岁的女儿滔滔不绝地讲述心肺复苏法和海姆利克氏操作法，母亲赞许地频频点头。
As the 12-year-old went on and on about CPR and the Heimlich maneuver,mom nodded proudly.
（2）、12岁时他必须自己谋生。
He had to stand on his own legs and earn his own living at the age of 12.
（3）、年龄在8到12岁盟队成员。
a player between 8 and 12 years of age who is a member of a little-league team.
（4）、目前新疆人口平均期望寿命延长到71.12岁。
Life expectancy in Xinjiang has been extended to 71.12 years.
（5）、12岁少女演讲A Remarkable Speech by the 12-Year-Old Girl
由于刺伤了堂弟，考尼勒斯?斯宾塞，泰勒12岁开始了拳击。With the prodding of his cousin, Cornelious Spencer, Taylor would start boxing at age 12.
【相似短语】
（1）、玛丽?克莱尔，12岁Marie Claire, age 12
（2）、12岁男孩女孩12 Years old boy or girl
（3）、人体在12岁时，The process of ageing
（4）、5至12岁的儿童children ranging in age from 5 to 12
（5）、12岁时at the age of 12
他从12岁起就拼命干活了。He worked like a black from the time he was twelve.