天大的英文：
as large as the heavens; extremely big

参考例句：

A disaster of cosmic proportions
天大的灾难.

I wouldn't marry him for all the tea in China.
有天大好处我也不嫁给他.

A broad daylight
长天大日

It's been a great pleasure to talk to you.
和你交谈真是天大的乐事。

In no circumstances,however favourable
无论如何;即使有天大的好处

Most shops have remained closed for the past three days.
过去3天大多数商店一直都没有营业。

This part of Europe was overgrown by giant pine trees
欧洲的这一地区长满了参天大松树。

Upon my word, fanny, you are in high luck to meet with such attention and indulgence!
说实话，范妮，你这样受抬举，真是天大的运气。

There would be no compulsion for them to keep moving
到这时候便是天大的力量，也赶他们不动了。

He was lying in his throat when he told you that.
他对你说的话实在是个天大的谎言。

large是什么意思：
adj. 大的，宽大的；多的，多量的，多数的；广博的；广泛的
adv. 大，大大地；夸大地

The shop was mobbed by a large crowd.
这家商店遭到一大群人的袭击。

This picture attracts a large audience.
这部电影吸引了很多观众。

The concert drew a large audience.
音乐会吸引了大量的观众。

heavens是什么意思：
n. 天堂；上帝；天；极乐

It was the will of Heaven.
这是天意。

the seventh heaven
极乐

The plan was to have an audience of the son of Heaven.
计划里是有觐见天子的环节的。

extremely是什么意思：
adv. 极端地，非常地，很

in an extremity
智尽力竭|陷入绝境

relative extreme
相对极值

It is extremely corrosive.
它是极强的腐蚀剂。