but what are those inconveniences?

什么不便之处呢
The main inconvenience is that everyone can enforce the law of nature.

主要的一点就是每个人都能行使自然法
Everyone is an enforcer or what Locke calls

每个人都是执行者或洛克说的
"the executor"of the state of nature

自然法的"执刑者"
and he means executor literally.

这个"执刑者"可以字面上理解
If someone violates the law of nature, he is an aggressor.

如果某人触犯了自然法他就是侵略者
He is beyond reason and you can punish him.

他就是失去了理智你就可以惩罚他
And you don't have to be too careful or fine about

而且在自然状态中你不必
gradations of punishment in the state of nature.

对实施惩罚的程度太过小心
You can kill him. You can certainly kill

你可以杀了他你可以理所当然地
someone who comes after you, who tries to murder you.

杀死一个跟踪你想谋害你的人
That's self defense.

那是自卫