成功交易的关键是知道何时买入和何时卖出。
The key to successful trading is to know when to buy and when to sell.
The steel industry must adapt to the needs of the future.
乳制品生产的可持续性不是一种选择，而是对后代子孙的必要责任。
I don't need a hero. I am my own hero.
Sometimes you just have to do what’s best for you and your life, not what’s best for everyone else.
每个数学问题都有一个解决方案；只是需要时间和努力去找到它。
基础设施的未来在于可持续性和智能技术。