天,灰蒙蒙的,一切都笼罩在灰尘中——头顶的大气层是一大片茫茫看不到边际的灰色。前面不远处的摩天高楼是深灰,行驶的车和前行的人也是各种深浅不一的灰。包括街边的香樟树都已不再是往年让人心悦的浓绿,而是灰蒙蒙的让人难受的灰绿。上班的成人戴着口罩,上学的孩子戴着口罩,买菜晨练的老 Days, gray, everything is shrouded in dust - overhead atmosphere is a vast expanse of immensity gray. Not far from the skyscraper in front of the dark gray, driving cars and forward people are also a variety of shades of gray. Including the camphor tree street are no longer pleasing dark green in previous years, but the gray and uncomfortable gray-green. Working adults wearing masks, children attending school wearing masks, buy vegetables morning practice old