广大的英文：
vast
extensive

参考例句：

In Greece there were great rejoicings over this auspicious event.
在希腊，这件喜事引起了广大的庆祝。

The infinite, vast night expanded gigantic all around them.
无边无际，辽阔广大的夜空在她们身边朝四面八方伸展。

They were born in the great crop-growing regions around the Yangtze and Pearl rivers.
是长江、珠江流域广大稻农插秧、除草、车水、挖地时传唱的一种民歌。

Of or relating to the part of the oceanic zone into which enough sunlight enters for photosynthesis to take place.
光合作用带的与能够获得足够阳光以发生光合作用的广大区域有关的

Under these circumstances Chinese clergymen and the vast majority of their followers had no rights
中国籍神职、教牧人员和广大教徒处于无权地位。

The domain is vast
领域广大

The domain of our country is vast.
我国领域广大。

Win the popularity of the voters
获得广大选民的拥戴

It is difficult to imagine the magnitude of the universe.
宇宙的广大很难想像。

His books have a large audience.
他的书有广大的读者。

vast是什么意思：
adj. 广阔的；巨大的；大量的

A vast crowd impacted the square.
广场上挤集了一大群人。

That that vast barren area is inhabited.
那片广阔的荒芜地区有一些人类在居住。

Vast distances boggle the mind.
距离之大，不可思议。

That was a vast expanse of grassland.
那曾是一片广阔的草原。

A vast, strategic maneuver to outflank,
一个大的战略上的侧翼包围…

extensive是什么意思：
adj. 广大的，广阔的；大量的，广泛的

Removed the sablotron extension in favor of the new XSLT extension.
去掉了sablotron模块，使用新的XSLT扩展模块

The greatest difference was noted in extension.
伸展测试的差异是最显著的。

addition or extension that prolongs sth
增加或延长的部分.

Such contamination has been extensively studied.
人们对这种污染进行了大量研究。

They own extensive land by the sea.
他们拥有海边的辽阔土地。