类似52, 29, 33这样的数字总是要用分号，如fifty-two,twenty-nine,thirty-three.
我们说某人52岁了，既可说She was fifty-two,也可以说She was fifty-two years old.但不能说成She was fifty two years old.
另外，我们在谈论某个人的岁数时，可以说下面几种说法：
1.She was fifty-two.
2.She was fifty-two years old.
3.She was a fifty-two-year-old woman.
4.She was a 52-year-old woman.
第4说法要比第3种说法更常用一些。
下面这种说法是错误的：
She was fifty-two-years old.