moral precepts的用法和样例：
例句
- It attempts to show how any rational being would agree to universal moral laws.
他试图表明任何理性的存在物都将赞同普遍的道德律令。 - So there was little countervailing pressure until the scientific evidence became undeniable and the moral imperative to do something overwhelming.
之前的补偿性压力实在太小，所以当科学依据让人无可否认之时，道德律令以势不可挡之力要求人们必须做点什么。
