我喜欢狗。你总是知道狗在想什么。它有四种情绪。快乐、悲伤、生气和专注。
"I like dogs. You always know what a dog is thinking. It has four moods. Happy, sad, cross and concentrating."
A good system design is one that makes it easy to do the right thing and hard to do the wrong thing.
全球性挑战需要全球合作。