logical necessity的用法和样例：
例句
- Man is face to face with the necessity of the world concealed to others when he indulges himself in madness.
当人放纵其疯癫的专横时，他就与世界的隐秘的必然性面对面了。 - With such necessity and speed, even at the very beginning of commodity exchange, did the need for a money commodity develop.
在商品交换刚刚产生的时候，对货币商品的需求，就以这样的必然性和速度发展起来了。
