Sustainability isn't an option; it's our responsibility to future generations.

I wanted to find out exactly who was in charge, whether it was God Himself or whether it was scientists in the laboratory.

形容人心难以捉摸，民众的行为像烟一样飘忽不定。

It is the user who should parameterize procedures, not their creators.

家庭是第一所学校，母亲是第一位老师。

可持续发展不仅仅是趋势，它是皮革鞣制的未来。