Pam had never learned that there were men who preyed on young runaways.帕姆从来不知道有人专门坑骗离家出走的年轻人。Pam was in the middle of basting the turkey.帕姆正在往烤鸡上淋油。Before Pam made the cake she read the directions on the packet.帕姆在做糕点之前看...
An appropriate - size tube is chosen to fit the trachea.选用与气管大小相仿的管子.The trachea in some patients is difficult or impossible to intubate under any circumstances.有的病人的气管在任何情况下都是很难、或根本不可能插管的.Conclusion Saber sheath trachea...