光的理论实际上是弹性介质振动的理论。

释义：天之险在于高不可升，地之险在于山川丘陵。王公设险以保卫国家，险的功用非常大。

"I always try to push the boundaries of what's possible in filmmaking."

Simplicity is prerequisite for reliability.

你不需要完美的声音来打动人们；你只需要用心歌唱。

Serving the real economy is the fundamental mission of the banking industry.

The story is not in the words; it's in the struggle.

顾客的信任是任何配方中最宝贵的成分。