So it doesn't matter how big the dictionary is, you can instantaneously retrieve the value associated with the key. Extremely powerful.

因为你可以在线性时间，内得到想要的键对应的值,这太强大了。

麻省理工公开课 - 计算机科学及编程导论课程节选

Yeah, so I mean, obviously Piccadilly Circus with the big screens is in so many films. Everybody knows it.

好的，显然地，大屏幕的皮卡迪利广场出现在很多电影里。所有人都知道它。

皮卡迪利的公司员工 - SpeakingMax英语口语达人

I think the reason why triathlon is not so, so big is just because it requires a lot of time.

我认为铁人三项运动之所以不够普及，
是因为它需要大量的时间。

对体育项目的热爱 - SpeakingMax英语口语达人

So I think that it's true that the economy is difficult and there is big challenge in front of us.

所以我觉得，目前的经济形势真的很困难，我们面临着很大的挑战。

事业就是挑战 - SpeakingMax英语口语达人

but because Los Angeles is so big and so spread out, it's kind of difficult.

但是因为洛杉矶太大，面积太广，这很难。

大众交通枢纽 - SpeakingMax英语口语达人