A PoemPeople laugh and people cry, Some give up some always try, Some say hi and some say bye, Others may forget you but never I. 下面是一首赞美老师的诗Teachers Flow like Mountain Streams Teachers flow like mountain streams High up through ice and snow, And bring their learning down to earth Not far from what we know. Knowledge you have pure and cold, Yet one thing, naturally, Of all you know I value most: Understanding me.1