沙尘天气分为浮尘、扬沙、沙尘暴、强沙尘暴、特强沙尘暴五个等级，扬沙是指风将地面尘沙吹起，使空气混浊，水平能见度在1km-10km以内，沙尘暴是强风将地面尘...
cloud的形容词cloudy adj.被云遮住的;阴云密布的;阴天的;多云的;不清澈的;不透明的;浑浊的 比较级 cloudier 最高级 cloudiest The room became cloudy with ...
be connected with 与…有关； 例句 What makes you suppose him to be connected with them? 什么使你想到他和他们有联系？ All your festivals seem to be...
