多兰将头探出窗户向欢呼的人们致谢。Doran stuck his head out of the window to acknowledge the cheering.沿途两旁站着欢呼的人群。Cheering crowds lined the route.欢呼的声音传到他们的耳中.Shouts of welcome saluted their ears....
管乐器的声音是由振动的气柱产生的.In wind instruments the sound is produced by a vibrating air column.孩子们伴随着管乐器者们吹奏的音乐起舞.The children danced to the music that the pipers were piping.芦笙以二次共鸣区别于其他簧管乐器.Lusheng is different from other reed m...