a slice of tomato(es)中tomato有没有复数形式

a slice of tomato(es)中tomato有没有复数形式 一般说a slice of tomato但是不知道能不能用a piece of tomato呢? 关于 slice of slice of 加可数名词时,如tomato 表示两片西红柿时,two slices of 后的tomato要加es变成复数吗?为什么? First,put the tomato in a slice of bread.(改错） a slice of a slice of a kilo of tomato(es)?a kilo of tomato 还是a kilo of tomatoes到底哪个对啊 为什么呢 a slice of 是什么意思呀? A SLICE OF LYNCH怎么样 A SLICE OF TERROR怎么样 First,put the cheese on the first slice of bread.Then,cut up a tomato.Add these to the bread.Next,put some lettuce on bread.After that,put the ham on the second slice of bread.Finally,put the tomato sauce on the ham,and put the third slice of bread o slice of a slice of bread(翻成中文) a slice of bread的意思 Eating a slice of water-melon ray winds a slice of pie A GIANT SLICE OF HORRID HENRY 英语翻译First,put the butter on a slice of bread.Then cut up an onion and a tomato.Add these to the bread.Next,put some lettuce and the chicken slices on the bread.Put the relish on the chicken.Finally,put another slice of bread on the top.