末日空气的英文：
airpocalypse（由air和表示世界末日的apocalypse拼缀而来。指由烟雾、灰尘、天气共同作用导致的极端污染的空气。）

January’s “airpocalypse,” as it has come to be known, has pushed sales of PM2.5-blocking masks skyrocketing in the past few months.
一月的“末日空气”，正如人们了解的那样，使PM2.5口罩的销量在过去几个月不断上涨。

There was not a breath in the air.
一丝风也没有。

a nip in the air
空气中有一种刺肤的寒冷

To fish in the air
海底捞月

Event of great significance or violence similar to events in the Apocalypse.
巨大事件（具有重大意义的事件或大动乱,类似《启示录》中者）。

The international modus operandi of government procurement and its apocalypse.
政府生机采购的国际作法及启示。

We live in the shadow of the apocalypse, of a catastrophe that will mean the end of the world itself.
我们生活在意味着世界末日将要到来的灾难的阴影当中。