市场失灵的程度并不是政府干预的充分条件。
"The key to successful verification is to start with a clear and precise specification of what the system is supposed to do."
我们都犯有对彼此的罪行。
当你拿着一块骨料时,你拿着的是数百万年的地球历史
Abstinence is the worst form of perversion.