彼得和迈克都是十二岁。
Peter and Mike are both 12 years old.
或
Both Peter and Mike are 12 years old.
分析
both...and...
……和……都 (指两者之间)
Peter and Mike Are both 12 years old
彼得和迈克都是十二岁英文
Peter and mike are both twelve years old.
Both Peter and mike are twelve years old.