Why are you so bright and cheerful today?

你今天怎么这么高兴？

《牛津词典》

This is why your TV is so high-def, and your computer monitor is so bright and clear.

这就是为什么你的电视机是高清晰的，你的电脑显示屏又亮又清楚。

youdao

Scientists also have to explain why Eris is so blindingly bright.

科学家还要解释厄里斯星如此眩目明亮的原因。

youdao

So they thought, "Alright, if the company is so great, if we have such a bright future, why you don't do a better job for your employees than the other Internet companies?" It was a tough call for me.

于是他们觉得：“如果百度真这么好，如果前景真的如此光明，为什么不能在员工待遇方面,做得比其他公司更好呢？“，那时我感觉左右为难。

斯坦福公开课 - 百度CEO李彦宏演讲：全球最大搜索引擎的发展课程节选