Piece/s ,后面的 /s

Piece/s ,后面的 /s 为什么How much are the sweets?的答语是It's 10 yuan a piece.为什么问时是are they ,后面答就成了It's It's a piece of piece是什么意思,pieces’s呢 It's a piece of cake.的中文意思? lt's a piece of cake的翻译 where's后面的S应该读z 还是s that piece of music s( ) beauyiful What's in the piece of chocolate? This piece of music (s )very beautiful. It's a piece of cake 外贸单位piece/s什么意思 英语名词后面的s,动词后面s,何时读[s]或[z] Mary ’s t---（job,piece of work）is to water flowers.t开头的英文单词 The stone looks like a piece of meat.这里的look为什么要加s 请问Mike's 后面的s怎么发音,Xiao Ming's 的s 鼻音加s读音比如children's后面的s读s还是z啊 英语单词后面有s的,s怎么发音?