He umpired baseball games.他担任棒球比赛的裁判。He umpired in the tennis match.他在网球比赛中担任裁判.I’ve umpired a cricket match for them.我当过他们的板球比赛的裁判。He umpired for school football matches until he was in his late 50s.他担任校际足球比赛的裁判一直到年近花甲。...
The position relation between mandible and maxilla or cranioaural.下颌骨对上颌骨乃至颅骨的位置关系.In the maxilla, the abutment distribution did not allow a palatal - free restoration.在上颌, 基牙的分布情况不允许做不覆盖腭部的设计.Objective : To find out the...