一个句子的意义不仅仅在于词语本身，还在于它所执行的言行行为。
网球是一项心理游戏。每个人都健康，每个人都打出很棒的正手和反手——重要的是头脑。
You don’t need a weatherman to know which way the wind blows.
In the chemical industry, safety isn't a department - it's a culture.
I don’t want to be safe. I want to be real.
The periodic table hasn't changed, but how we use its elements must.