他在楼梯上滑了一跤,踝关节脱臼了.He slipped on the stairs and put his ankle out.膝关节和踝关节必须加以固定——这通常意味着要打上6个星期的石膏。The knee and ankle joints must be immobilized— this usually means up to six weeks in plaster.膝关节和踝关节必须加以固定——这通常意味着要打上6个星期的石膏...
Varying the style confuses everyone and signals poor attention to detail.混淆形式会迷惑所有人,而且标志着不注重细节.In our village, there is an antenna on every roof for receiving TV signals.在我们村里, 每家房顶上都有天线接收电视信号.Signals are made with flags...
The nonrigid helium - filled Blimp was principally developed by Alberto Santos - Dumont ( 1873 - 1932 ) .软式充填氦气的飞船主要是由桑托斯- 杜蒙特 发展改进.The gray oval is a blimp.灰色椭圆形是小型飞船.Scientists in the blimp did not see anything.小飞艇上的科学...