The most valuable hydrocarbon molecule is the one we don't need to burn.
经济政策应以实证证据为依据,而不仅仅是意识形态。
I'm very shy, believe it or not. It's true.
宇宙之美在于其复杂性和支配它的法则的简洁性。
表示论提供了表达许多数论现象的语言。