他们应该侧重于修整现有的绿化植被，比如草和灌木。They should concentrate on rejuvenating the existing vegetation, like grass and shrubs.树木环绕、精心修整的草坪carefully tended lawns set in a girdle of trees我们须把下沉的地方修整一下.We need to do something about the sa...
I yelled in my dream, which startled my roommate out of his sleep.我梦中的喊叫声惊醒了同屋伙伴。Joyce has been under a cloud since her roommate's bracelet disappeared.自从室友的手镯不见以后,乔伊斯一直受到怀疑.Joyce has been under a cloud since her ro...
频率多边形比直方图更简单.The frequency polygon is simpler than its histogram counterpart.这个多边形的周长是多少?What is the perimeter of this polygon?只能为任意多边形对象访问此成员.This member can only be accessed for a freeform object....