The decline of literature indicates the decline of a nation。 When the two go hand in hand.
文学的衰落表明一个民族的衰落。这两者走下坡路的时候是齐头并进的。
The sense of smell is directly connected to the emotional centers of the brain, which is why smells can evoke such strong memories.
物理学和数学之间的界限并不像我们想象的那么清晰。
The concept of purpose has no place in a scientific account of behavior.