释义：担任什么职位，就要安心履行责任，以忠诚之心做好工作，不超越自己的职权范围。

河流向那些敢于倾听的人低语秘密。

地球只是宇宙中的一个波点。

The investor's chief problem - and even his worst enemy - is likely to be himself.

Sustainability is not just about protecting the environment, it's about creating a system that works for everyone.

物理定律是宇宙书写其故事的语言。