可持续捕捞不是一种选择;如果我们想保护海洋生态系统,这是唯一的前进道路。
家不仅仅是一个地方;它是一种感觉,一种归属感。
The stock market is filled with individuals who know the price of everything, but the value of nothing.
The cognitive map is not a picture or a model in the head, but a dynamic, changing representation of the environment.