兩個相對應的詞

They became the husband and the wife in 2002. (錯的)
They became husband and wife in 2002. (對的)

在英文, 兩個相對應的詞放在一起使用時, 可省去冠詞。
husband and wife 正是這類詞組 。

e.g. What is their relationship? They are husband and wife.


在英文,兩個相對應的詞放在一起使用是十分常見, 全部可以省略冠詞。
e.g.
men and women
young and old
boys and girls
east and west
north and south
rich and poor
bread and butter
heaven and earth