Every chemical compound must have a definite composition, which can be expressed by the symbols of its elements.
每一种化合物都必须有确定的组成,这可以用其元素的符号来表示。
Innovation is not just about technology; it's about changing the way people think and live.
A writer is someone who pays attention to the world.
每个圣人都有过去,每个罪人都有未来。
Sustainability isn't a trend; it's the future of business.
可持续发展不仅仅是保护树木;它关乎确保自然和人类共同繁荣的未来。
Happiness is holding someone in your arms and knowing you hold the whole world.