「對」是一个很常用的字，可以表示回答别人「你说得对」，也可以表示「对着」某个方向或某个人。

"對" is a very common character, which can mean to answer someone as in "你说得对" (you are right), or to face a certain direction or person.

它还可以当量词用，比如「一對筷子」。

It can also be used as a measure word, for example "一對筷子" (a pair of chopsticks).