a piece of 和a slice of有什么区别
a piece of 和a slice of有什么区别
a pair of和 a piece of有什么区别
a piece of和a bar of有什么区别?
a piece of和a cup of有什么区别?
A newspaper 和 A piece of newspaper有什么区别?
piece ,loaf和 slice有什么区别?
a piece 和a piece of paper有何区别?
是a piece of paper 还是 a slice of paper
an article of furniture和 a piece of furniture有什么区别吗?
a slice of
a pair of和a piece of的区别
a piece of和a slices of的区别