They were used more at the time by rich people due to the cost.

After the explosions at Tianjin Port, Internet users began to appeal to celebrities and rich people to donate money to help those affected by the disaster.

自天津港爆炸以来，网友开始呼吁名人富人捐款帮助受灾群众。

The rich people can make money very easily.

富人可以很轻松地赚到钱。

She says these include rich people and poor people.

有穷人也有富人。

Rich people are also known in my home town.

在我的家乡也有有钱人。（这个挑战最，英汉句式似不搭界）

Whereas Pittsburgh has the opposite problem: plenty of nerds, but no rich people.

而匹兹堡则有相反的问题：书呆子很多,富人却没有。

No, it would not.Start up investors are a distinct type of rich people.

不,不会的。创业投资者是一种与众不同的富人。

It is not always the rich people who are happy.

有钱的人未必一定愉悦；

You only need two kinds of people to create a technology hub: rich people and nerds.

创建技术中心只需要两类人：富人和书呆子。

Rich people don't want to live in Pittsburgh or Ithaca.

有钱人不想住在匹兹堡或伊萨卡。

Rich people are rich because they solve difficult problems.

有钱人之所以有钱，是因为他们解决了难题。

Although South Africa has many of the attributes of the first world — some good infrastructure, millions of rich people — it is still not part of that world.

虽然南非有着很多第一世界的特征——一批良好的基础设施，不计其数的富人，但它还并不属于那个世界。

Rich people are often creative and take calculated risks.

富人更富有创造性，愿意经过精心筹划后再去冒险。

How are rich people in China showing off their success?

中国有钱人是如何展示他们的成功呢？

Certainly! But only rich people had cars at that time!

当然可以！但是在那时只有有钱人才有车。

Next time you visit the zoo, watch the monkeys carefully.

下次你们参观动物园，要仔细观察猴子。

Next time you visit the zoo, watch the tigers carefully.

下次你们参观动物园，要仔细观察老虎。

Alice: I will take some photos of the pandas first when I visit the zoo.

艾丽斯：我去动物园的时候先拍几张熊猫的照片。

I like to visit the zoo.

我喜欢游览动物园。

It is a good idea to visit the zoo in a vacation of school.

在学校放假期间，参观一下动物园，确实是一个好主意。

Jane's class is going to visit the zoo tomorrow.

简的班级明天要去参观动物园。