The most exciting aspect of chemistry is the ability to create new molecules that have never existed before.
化學(xué)最令人興奮的地方在于能夠創(chuàng)造出從未存在過的新分子。
粒子的概念只是一種近似,僅在特定極限情況下有效。
I don't want to be a star. I want to be an actor.