近些年来,我们深切感到北京的绿化取得很大成绩,春季的风沙小了,春、夏、秋三个季节,鲜花开满街头,五光十色;草坪茵茵,有如绿色的地毯给人以清新;树木整齐排列在道路两旁,为行人们遮挡着夏天的烈日。这是各级领导重视北京的绿化、是园林工作者辛勤劳动的成果。但是一到冬季,花谢了,草枯了,树叶落了,除少数常绿树外、整个城市很少见到绿色。北京城什么时候能让漫长的冬季也 In recent years, we deeply felt that the afforestation in Beijing has made great achievements. The sandstorms in spring are small. In the three seasons of spring, summer and autumn, flowers bloom in the streets and are colorful. The lawn is like a green carpet giving freshness. The trees are neatly arranged on both sides of the road, sheltering pedestrians from the summer sun. This is the result that all leaders at all levels attach importance to afforestation in Beijing and are the result of hard work by garden workers. But in the winter, thanks to flowers, the grass is dead, the leaves fall, with the exception of a few evergreen trees, the whole city rarely see the green. Beijing City, when to make long winter too