sandstorm是以复数出现吗

是以复数出现，复数是sandstorms，例如：

1.We were lucky and didn't encounter any sandstorms.我们很幸运没有遭遇沙暴。

2.In 1991, I had spent five months in a bleak African country, Niger, ravaged by sandstorms and blistering heat.1991年我在尼日尔呆了五个月。那是个荒凉的非洲国家，沙暴遍地，酷热难当。