But volcanic ash can be sand too.

但是火山灰也可以是沙子。

Volcanic ash can melt if it's sucked into aircraft engines.

如果被飞机引擎吸入，火山灰会融化。

The ash can melt if it's sucked into plane engines, so pilots are told not to fly through it.

火山灰会被飞机引擎吸入而融化，所以，飞行员被要求不要从火山灰里穿过。

Government offices are also closed and flights have been cancelled because volcanic ash can melt inside jet engines and badly damage them.

政府停摆。诸多航班，因火山灰可融化内部发动机带来严重后果而停飞。

Then she poured the quince seed and borax mixture out of the window into the ash can.

然后她把木瓜籽和硼砂的混合物从窗外倒进垃圾桶里。

This gas combined with hot ash can race down the sides of a volcano as fast as 100 miles per hour burning everything in its path.

这种气体和灼热的火山灰结合在一起，可以以每小时100英里的速度沿着火山的边缘向下侵袭，燃烧沿途的一切。

Volcanic ash can clog up and damage jet engines while the tiny particles of glass in the ash can also melt and block the ventilation holes which can cause the engines to overheat and stop working.

火山灰会堵塞通风管并毁坏喷气式飞机，因为火山灰中细小的玻璃态物质会融化然后堵塞飞机的通风孔，导致引擎过热而熄火。

Wildfire smoke and ash can irritate eyes, nose, throat and lungs, making people cough or wheeze and can make it hard to breathe, according to the US Centers for Disease Control and Prevention (CDC).

据美国疾控中心称，山火烟尘和灰烬会刺激眼睛、鼻子、喉咙和肺部，使人咳嗽或喘息，并使呼吸困难。

The brightness of the moon's red glow depends upon how much dust and clouds are in the Earth's atmosphere, following volcanic activity Ash can block out enough light to render the moon a darker red or even mere black.

月亮红光的亮度取决于地球大气中有多少灰尘和云层，火山活动之后，灰可以挡住足够的光线，使月亮变成深红色甚至是黑色。