含义：adj. 整体的，单片的n. 上下身相连的衣服Far be it from me to interfere in your affairs but I would like to give you just one piece of advice.我绝不想干涉你的事，我只不过想给你一个忠告。
She brings me only one piece.她只给我端来一片。Let's see it all in one piece.让我们将所有看成一个整体。I would like to eat one piece.我想吃一块。There's one piece missing.有一件不见了。