用die out（意思是逐渐消失）造句一般的初中水平不用太难的词语

The rainforest would die out if we don't protect it.
如果我们不保护雨林的话，它就是渐渐消失。

Fish will die out of water!
鱼离开水就不能活!
Many animals had die out
许多鸟兽现已绝种。
这样应该很简单很简单吧

Many old customs are dying out.
很多古老的习俗正在消失。

die out指物种，家族，观念，习惯等的绝迹，消失
例句：
This kind of species died out many years ago.
这个物种很多年前就灭绝了。

The fire died out after a few hours.

Many species of animals are in danger of dying out.
许多动物种类都处于濒临灭绝的危险中。
It will exist everlastingly whether human exist or die out.
不管人类存在或灭亡，它都将永久地存在。