Sustainability isn't an option; it's a necessity for the future of our planet.
小说让我们能够讲述那些对非虚构作品来说太过滑溜的真相。
Mathematics is the language of the universe, and through it, we can unlock the secrets of existence.
数学是宇宙的语言，通过它，我们可以解开存在的秘密。