物理定律是普适的,在像银河系中心这样的极端环境中测试它们是至关重要的。
The chemical industry is the backbone of modern civilization, and we must treat it with the respect and responsibility it deserves.
Safety is not just a policy, it's a culture that every employee must embrace.
实现明天的唯一限制是我们今天的疑虑。