英语长度和宽度的表达方法

英语表达长度可用以下方法：
1) 使用形容词long
The tube is about five meters long. 这条管子大约5米长。
The tube is over/under five meters long. 这条管子超过/不足5米长。

2) 使用名词length
The length of the bridge is 200 metres. 那座桥有200米长。
The exact length of the tube is five centimeters. 管子的确切长度是5厘米。
In the diagram below, what is the approximate length of the shortest line. 下图中最短的线长约多少？

3) in length
The river is approximately 300 miles in length. 河大约长300英里。
It was over 30 feet in length and had a 2,500-horsepower engine. 它有30多英尺长并有一个2,500马力的发动机。

4) have a length of...
A rectangle has a length of 9.00 inches and a width of 4.25 inches. What is the area in square inches? 一个长方形长9英寸宽4.25英寸。请问面积是多少平方英寸？
The figure has a total length of about 96 meters. 塑像全长约96米。
the Great Wall has an approximate length of 6700 kilometers. 长城长约6,700 公里。

英语表达宽度可用以下方法：
上面详细列举了长度的表达方法。宽度的表达方法与之类似，简单例举如下：

1) 使用 wide, broad, across
The garden is thirty feet wide. 这个花园三十英尺宽.
The yard measures about 50 feet across. 院子约50英尺宽。(注意这里表达长宽时可以使用单词measure。)
The river is 50 meters broad. 河50米宽。

2) 使用名词 width, breadth
What's the width of the Thames at London ? 泰晤士河流经伦敦的那一段有多宽？
The breadth of this river is about twenty metres. 这河的宽度大约是20米。

3) in width, in breadth
The hall is 15 metres in length and 8 in width. 这个大厅长十五米, 宽八米。(注意8 in width 采用的省略，即省略了重复说出meters。)
It was a small river, six feet in breadth. 那是一条小河,仅六英尺宽。

4) have a width of...
The corridor has a width of two metres. 这条走廊有两公尺宽。

另外，注意用形容词表达长、宽时，常可以后置定语的方式出现，如:
A room ten meters long and five meters wide will be enough to hold all our furniture. 一个长10米宽5米长的房间足以容下我们的所有家具。（这里ten meters long and five meters wide 为后置定语修饰room)