要使这种形式的喷出物质量很大是有困难的.It is difficult to exhaust much mass in this form!喷出物造成的转变远超过先前的再游离过程.The transformation wrought by outflows was much more severe than the earlier reionization....
The asphalt playgrounds have been grassed over or sown with flowers.原来的柏油操场已经覆上了草皮或种满了鲜花。The creation of new playgrounds will benefit the local children.新游戏场的建立将有益于当地的儿童.The city has several playgrounds for children.这座城市...