可持续性必须成为我们在化工行业所做一切的核心。
Sustainability should be at the core of every chemical company's strategy, not just an afterthought.
可持续发展应成为每家化工企业战略的核心,而不是事后才考虑的事。
I have never been able to write a happy play. I can't. I can write a funny play, but I can't write a happy play.