一幅图画是一个事实。
Quality is not an end in itself; it is a means to an end.
We are survival machines – robot vehicles blindly programmed to preserve the selfish molecules known as genes.
Natural gas is a versatile fuel that can support renewable energy growth by providing reliability when the sun isn't shining and the wind isn't blowing.
死者总是与我们同在,我们也总是与他们同在。
《诗经》三百篇,其内容可以用一句话概括:“思想纯正,没有邪恶。”