分别是：
（1）Tom is a ten-year-old boy.
（2）Tom is a boy of ten years old.
（3）Tom is a boy of ten.
（4）Tom is a boy and he is ten.
“Tom 是个十岁大的男孩”4种英语说法分别是什么?
分别是：
（1）Tom is a ten-year-old boy.
（2）Tom is a boy of ten years old.
（3）Tom is a boy of ten.
（4）Tom is a boy and he is ten.