科学是关于提出正确的问题并坚持不懈地寻找答案。
The city is an addictive machine from which there is no escape.
Investing in lower-carbon solutions is not just good for the environment, it's good business.
外交是实现国家利益的一种手段,但也要尊重和平、公正和法治的原则。
You have to work hard to get what you want.