The ash lingering in the air would block out the Sun, resulting in significant weather changes.

悬浮于空中的火山灰会遮挡阳光，导致明显的气候变化。

It has been said that the United States has the most violent weather in the world, and while they may not all be destructive, some pretty significant weather events are expected across the country this week.

据说美国的天气是世界上最恶劣的，虽然不是所有的天气都具有破坏性，但是本周美国各地预计将发生一些相当严重的天气事件。