龙到浅水里会遭虾戏弄，虎落平原狗都会去欺负。

The challenge of creating efficient and selective catalysts keeps me motivated every day.

"A book is a journey that begins with a single word."

The question is not whether the thing exists， but whether it has any essence which is capable of existence without us.

作家是一个永远不满足的人，总是在寻找完美的词语。

我们的农民是这个行业的支柱；我们必须用技术和公平的政策来支持他们。