解释:手指粗于胳膊, 胳膊粗于大腿, 病情必然很重。
The nervous system is a dynamic, ever-changing system.
The more you learn, the more you know, the more you know, the more you forget. The more you forget, the less you know. So why bother to learn?
The universe is not just a collection of stars and galaxies; it's a complex web of interactions and phenomena that we are only beginning to understand.
"Words have the power to heal and to destroy."