Method 21 patients with nasal vestibular cyst were subjected to marsupialization by nasal endospic.方法使用鼻内窥镜对21例鼻前庭囊肿病例行揭盖法鼻前庭囊肿造袋术.Objective To discuss the clinical effect of marsupialization on nasal vestibular cyst wit...
P点和Q点分别表示该质点的两个位置.Points P and Q represent two positions of the particle.碰撞并不往往使质点减速.Collisions need not always act to slow particles down.我们可标记占据某个小领域的质点群.We label a group of particles occupying a small neighbourhood....
他是个瘦高个，头发灰白。He was a tall, thin man with grey hair.他的头发又长又乱，脸上胡子拉碴。He had long unkempt hair and a stubbly chin.他头发凌乱，没刮胡子，脸色苍白。His hair was disheveled, and his face was unshaven and gray....
Despondently, I went back and told Bill the news.我深感泄气地回去把这消息告诉了比尔。It had come to that, he reflected despondently.事情已经到了这个地步了, 他沉思着,感到心灰意懒.He shook his head despondently.他沮丧地摇摇头....