piece,pieces,pieces of,piece of,有什么相同和不同点.

piece,pieces,pieces of,piece of,有什么相同和不同点. pieces of cake?and pieces of cakes 有什么不同?and basket可以用piece 有没有pieces of这个短语?a piece of ,pieces of 分别怎么用? 是ten piece of music还是ten pieces of music 几张纸是 soma piece of papers 还是some pieces of papers two piece of coats / two pieces of coat.那个对? several pieces of wood/a piece of wood 选择填空1、I want three（）white paper.A、pieces B、piece of C、pieces 外贸piece/pieces是什么意思 I can see two pieces of bread on the table.对two piece of提问 十张纸 是ten pieces of paper还是ten piece of papers? 英语翻译Ivan has 6 pieces of string.Each piece of string is 25cm