山溪里的水随着季节常涨常退,不明事理的小人反复无常。
I think singing is a way to vent emotions and express oneself.
有些人有谈判的能力。这基本上是一个天赋的艺术,要么有要么就没有。
Schemas are the building blocks of cognition, organizing our knowledge and guiding our understanding.
Sustainability isn't a choice anymore; it's our only path forward.