She fell off a horse and suffered a con-cussion.她从马上摔下来，造成了脑震荡。His exhaust fell off six laps from the finish.离终点还有6圈时，他的排气管掉了下来。Suddenly the horse lurched to one side and the child fell off.马突然歪向一边，小孩就摔了下来。...
A drowne man will catch at a straw.溺水的人连一根麦杆也会牢牢抓住.Bacchus have drowne more men than neptune.贪杯而死,多于海难.It is as helpful as throw a drowne man both end of a rope.正如把绳子的两头给溺水的人一样有用....
Metastatic tumors to gingival from non - oral malignancies are very uncommon.摘要从 非 口腔部位的恶性肿瘤转移至齿龈是非常罕见.Objective To study the distribution of the chromatic value of gingival porcelains.目的了解临床常用牙龈瓷的颜色参数.Gingival margins c...