六歲的英文怎么寫

　　例句：

　　I have not spoken since I was six years old.

　　我從六歲起就不再說話了。

　　Six years old: My dad is smarter than your dad.

　　當我六歲的時候：我爸爸比你爸爸聰明。

　　I learn to ride bikes when I was six years old.

　　在我六歲的時候我就開始學習騎自行車。

　　The first time I saw the sea in my six years old.

　　第一次看見大海，是在我六歲那年。

　　Most children do until they're five or six years old.

　　很多孩子都會這樣知道他們是5歲或者六歲。