I have to remind myself that some birds aren't meant to be caged. Their feathers are just too bright. And when they fly away, the part of you that knows it was a sin to lock hem up DOES rejoice. Still, the place you live in is that much more drab and empty that they're gone. I guess I just miss my friend.

复杂容易，简单难。

The best and most beautiful things in the world cannot be seen or even touched - they must be felt with the heart.

Technological leadership is the foundation of petrochemical enterprises, and we must continuously increase R&D investment.