命题是断言某事是或不是事实的陈述。

Data is a precious thing and will last longer than the systems themselves.

Every chemical process we develop must pass three tests: Is it safe? Is it sustainable? Is it scalable?

译文：一个人处世应该时刻反思自己的言行，因为祸福如影随形。赏析：善恶随人作，祸福自己招。处事要多反思自己的言行是否得当，因为祸福就在转瞬之间发生。

跨国合作是解决水产养殖全球挑战的关键。