汤姆跌了一跤，下唇开始肿起。
你的下唇有一道疤痕。
1·The distance from bottom of stop, between the eyes, to the tip of nose should be as short as possible and not exceed the length from the tip of nose to the edge of underlip.
从止部底端(两眼中间)到鼻尖的距离尽可能短，不超过从鼻尖到下唇边缘的距离。