piece of kind of一类的前面是几个后面的piece kind要变复数不

piece of kind of一类的前面是几个后面的piece kind要变复数不
piece of kind of一类的
前面是几个后面的piece kind要变复数不

piece of kind of一类的前面是几个后面的piece kind要变复数不
要的
three pieces of bread
two kinds of people

要( ⊙ o ⊙ )！
~\(≥▽≤)/~啦啦啦

是要的