网友回答：
green grass in the fields， such as holidays in the country，when spring came， as all the other birds are also singing at the same time， and flowers opening everywhere.The Countryside in Summer， the countryside in summer louder this time; and soon the
温馨提醒：随时光变迁，文中所陈述观点；准确性、难免有所变动，因此文中观点仅供参考。
