Where have you been? I've been worried sick.

Where have you been? What happened to your clothes?

你去哪了？你的衣服呢？

Where have you been? I've been trying to get hold of you all day.

你去哪了？我一整天都在找你。

Those who have been doing evil should immediately stop, repent and start anew and make amends for their crimes by good deeds.

做过坏事的人，赶快停止作恶，悔过自新，将功赎罪。

Some scientists have been doing research on artificial internal organs.

一些科学家一直在研究人造内脏。

Biological systems have been doing this for billions of years

生物系统亿万年来一直都是这样。

When things happen so fast, maybe you can't understand clearly what you are doing or learning, so it is important to stop yourself to think about what you have been doing or learning.

事情发展迅速的时候，你很难搞清楚自己在做什么、学什么，所以停止思考这些问题是很重要的。

Among them, the most famous speech is@ I have a dream@.

其中，最著名的演讲是我有一个梦想。

I have a dream of traveling around the world.

我梦见我环游世界。

I have a dream, and it is to be a doctor.

我有一个梦想，那就是成为一个医生。

He used the phrase "I have a dream" many times.

他很多次都用了短语“我有一个梦”。

I have a dream today!

我今天怀有一个梦。

I have a dream that one day I can speak good English and study in the USA.

我的梦想是能说一口流利的英文，然后有一天能到美国留学。

It is "I have a dream" written in Chinese.

而它用中文写成“我有一个梦想”。

I have a dream! It's "Play Games Everywhere*".

我有一个梦想，就是“让游戏无处不在”！

I have a dream to go to Korea.

我有想去韩国的梦想。

Eg. I have a dream that one day this nation will rise up.

我梦想这个国家有一天会站起来的。

I have a dream, deeply rooted in my heart.

我有一个梦想，深深扎根于我的心中。

But I have a dream. The industrial revolution and economic growth continue.

但我有一个梦想：工业革命与经济增长的势头能够持续下去。

I have a dream that one day the rough place will be made plain.

我有一个梦想：终有一天崎岖不平的地方将会变得平坦。

he offers us something of a solution in his "I have a dream" speech.

在他的“我有一个梦想”的演讲中，为我们提供了一个解决方法