两层的英文：
n. two stories

参考例句：

The packing should be double bags lined with kraft paper.
包装为两层袋子内衬牛皮纸。

Fold the fabric and stitch the two layers together.
将布料对折，然后将两层缝在一起。

Club sandwich;( esp US)sandwich consisting of three slices of bread or toast and two layers of meat, lettuce,tomato,etc
总会三明治(三片面包夹有两层肉、生菜、蕃茄等的三明治)

One thickness of cotton wool and two thicknesses of felt
一层棉絮及两层毛毡.

Two thickness of felt
两层呢毡

Two or more layers of fabric are combined by pushing barbed needles through them
用钩针将两层或两层以上的织物缝合。

Houses must not be more than two storeys high.
房子的高度不得超过两层。

Peter used the service stairway to descend the two flights.
彼得从职工专用楼梯走下两层楼梯。

Part(of sth)that is thick or between two opposite surfaces
(某物的)较厚的或夹在两层中间的部分

The mesophyll consists of two layers of palisade parenchyma
叶肉是由两层栅栏薄壁组织组成。

two是什么意思：
num. 二，两个
n. 两个人
adj. 两个的

Knit two, purl two.
两针朝下，两针朝上。

the better of the two
两者中的更好者

What does two and two make?
2加2等于几？

Knit two plain, two purl.
两针平织，两针反织。

The two friends met where the two roads crossed.
这两个朋友在两条公路的交叉路口相遇。

stories是什么意思：
n.
[story]复数

This is a salt story.
这是个下流的故事。

There is a dwarf in the story.
在这个故事里，有一个（有魔法的）小矮人。

Listening to the stories reminds the audience of their own stories.
听故事时,人们会联想起自己的故事。

The building has fifty stories.
这座大楼有五十层。

In this story, the representation of life is hollow.
在这个故事中，对生活的描述是虚伪的。