例句：
I have not spoken since I was six years old.
我从六岁起就不再说话了。
Six years old: My dad is smarter than your dad.
当我六岁的时候：我爸爸比你爸爸聪明。
I learn to ride bikes when I was six years old.
在我六岁的时候我就开始学习骑自行车。
The first time I saw the sea in my six years old.
第一次看见大海，是在我六岁那年。
Most children do until they're five or six years old.
很多孩子都会这样知道他们是5岁或者六岁。