How many megacities were there in the world in 2017?
In 2017, there were 16 megacities in the world.
How many megacities were there in China in 2017?
There were 6 megacities in China in 2017.
In China, what do they build every five days?
They build a new skyscraper every five days.
Where is Shenzhen?
It's a big city in China.
Was Shenzhen a big city forty years ago?
No, it wasn't. It was a small town.
How many people were there in Shenzhen forty years ago?
There were only 30,000 people.
What were there after big companies arrived in Shenzhen?
There were big factories and a lot of jobs for people. There were new buildings everywhere.
What are there in Shenzhen these days?
There are huge supermarkets, shopping centers, and skyscrapers.
How many people live in and around Shenzhen these days?
More than 18 million people live in and around Shenzhen.
What do people make in Shenzhen these days?
They make things like cell phones, tablets, and computers now.
