广度的英文：
breadth
extent
scope
span

参考例句：

A particle has no extent so that its position is a point.
质点没有广度因此它的位置是一个点。

We should develop our national economy in breadth and depth.
我们应该在广度和深度上发展我们的国民经济。

The scope and function of Zongpu is wider than the mere devising of tables of descent of its clan members.
宗谱的广度和用处不单是列出各宗支的一个图表。

After bilateral relations are normalized, our exchanges will increase in depth and scope.
关系正常化以后的交往，无论深度和广度都会有大的发展。

breadth是什么意思：
n. 宽度；广度；宽宏

To have a hair-Breadth escape
九死一生

Contradictions grow in breadth and in depth.
矛盾扩大和加深。

He is a successful enterpriser with a breadth of vision.
他是位眼光广阔,事业有成的企业家。

extent是什么意思：
n. 广度，长度，宽度；范围，程度，限度

Determination of the Extent of Branching in Amylopectin
支链淀粉分支程度的测定

He loves you to a great extent.
他很爱你。

To that extent, Mr Sharon was no“ aberration”.
由此看来，沙龙先生所作所为并非不循常理。

scope是什么意思：
n. 机会，余地；范围，领域；眼界，见识；望远镜

Beyond the scope
越出范围

But there is plenty of scope at that level.
然而在此水平上还是有足够的余地。

He is a man of limited scope.
他是一个见地狭窄的人。