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...
It is enough to be generous with your attentions to your lover.你对爱人的关心已足够表现出你的慷慨了.Be generous with appropriate hugs, kisses, pats on the back and hand holds.毫不吝惜恰当的拥抱 、 亲吻 、 轻拍后背、手拉着手....