近几年来，当地的工业发展非常迅速，人们逐渐富裕起来．
The has developed very quickly in recent years， and people are getting wealthier．
The official language of China is Putonghua， the foreigners usually call it Mandarin.
He who has not climbed Great Wall is not a true man.
People around the world are working on （reduce） the causes of global warming.
At the very heart of Beijing，the Palace Museum is China's largest of all the ancient
（building）.
Nowadays，better medical care and cleaner water help people live （long）.