(=oral rehydration salt) 经口补液盐,(=oral rehydration solution) 口服补液溶液,(=oral surgeon) 口腔外科医师,(=oral surgery) 口腔外科,(=orthopaedic research society) 矫形外科研究学会,(=orthopaedic surgeon) 矫形外科医师,(=orthopaedic surgery) 矫形外科
