It just happens — it's instinctive, and it's a very primal aspect of human behavior that goes back to ancient herd mentality.
是啊，会这样的——这是一种本能反应。追根溯源，打哈欠这一行为在远古时期就是人类最早的行为之一。
It just happens — it's instinctive, and it's a very primal aspect of human behavior that goes back to ancient herd mentality.
是啊，会这样的——这是一种本能反应。追根溯源，打哈欠这一行为在远古时期就是人类最早的行为之一。
应用推荐