This is a long ruler.It is a rectangle.(两句合并一句)

问题描述:

This is a long ruler.It is a rectangle.(两句合并一句)

this is a long rectangular ruler

This is a long ruler which is a rectangle .

合并前:这是一把长尺子.它是长方形.
合并后:这把长尺子是长方形.
This long ruler is a rectangle.
rectangle:长方形