麻烦英文好的帮我翻译下，《生死离别，任其自然》一定要正确

Separation of life and death, he was their natural

Life depart comes naturally and I'd just let it be/slide.
Let things be.比较口语化点

being together or apart, living or dead, just let it take its own course.

路过~~~~~~~
但是我干确定3楼的肯定不行，这里加上了书名号所以要的不是口语。