创新是煤炭行业未来的关键，我们必须拥抱新技术和新理念。
Innovation is the key to the future of coal industry, we must embrace new technologies and ideas.
América Latina es el continente de la utopía y la nostalgia.
I love you not because of who you are， but because of who I am when I am with you。
My propositions are elucidatory in this way: he who understands me finally recognizes them as senseless.
尿素合成是一个幸运的发现，但它开辟了一个新的研究领域。
The past is always tense, the future perfect.