George showed me to the guestroom which, he said, was rarely used.乔治带我去了客房, 他说, 那很少有人用.Please make the guestroom ready for our visitors.请为我们的客人们准备好房间.Sweep the floor in the guestroom.把客房的地打扫一下....
Smoking is a causative factor in several major diseases.抽烟是引起几种严重疾病的病因。Especially in hearing - handicapped children , endolymphatic hydrops plays a major causative role in acute hearing loss.本症须与内淋巴水肿、外淋巴瘘 、 腮腺炎耳聋、及积液性中耳...