沙尘暴 dust storms/sandstorm
河北坝上地区百万亩杨树防护林有衰老死亡之虞，由此带来的沙尘将威胁京津等地区。
Strong winds dispersed the city’s lingering haze, but ushered in dust storms and a sharp temperature drop.
强风吹散了这个城市上空挥之不去的雾霾，但却带来了沙尘暴和剧烈的降温。
The whole region was plagued by the severest sandstorm in five years, which decreased visibility to less than a kilometer.
整个地区遭遇五年来最严重的沙尘暴，能见度降低到一公里以内。
