最优财政政策要求税率随时间平稳变化，仅对政府支出的永久性变化作出反应。

Don't walk behind me; I may not lead. Don't walk in front of me; I may not follow. Just walk beside me and be my friend.

"I’ve always tried to stay true to myself and my values."

Coal will remain part of the energy mix, but its role must be redefined for a cleaner future.

The stage is my second home, every performance feels like coming home.

当我们是大为谦卑的时候，便是我们最接近伟大的时候。