die死亡
When people, animals, and plants die, they stop living.
当人、动物和植物死亡时，它们停止了生存。
例1：
A year later my dog died.
1年后，我的狗死了。
例2：
Sadly, both he and my mother died of cancer.
令人悲伤的是，他和我母亲都死于癌症。
例3：
I would die a very happy person if I could stay in music my whole life.
如果我这一生都能生活在音乐之中，就是死，我也会死得快乐。
pass away 去世
You can say that someone passed away to mean that they died, if you want to avoid using the word “die” because you think it might upset or offend people.
如果你想避免使用“死”这个词，因为你认为它可能会让人难过或冒犯，你可以说某人去世了，意思是他们死了。
例：
He unfortunately passed away last year.
他不幸于去年去世了。
英语母语人士点评：
“Pass away” is a euphemism for “die”, which means it’s an indirect, less harsh way of saying “die”. They mean the exact same thing, though.
“Pass away”是“die”的委婉说法，它是“die”的间接说法，不那么刺耳。但它们的意思是一样的。
