医科

He was studying to be a doctor.

他在读。

I'd bet dollars to doughnuts he's a medical student.

我敢打赌他是个学生。

He is a medical student.

他是个学生。

A survey on 155 opioid abusers and their polydrug abuse was carried out with a questionnaire designed by National Institute on Drug Dependence.

用北京学中国药物依赖性研究所设的调查表,对155例阿片类滥用者药滥用情况进行调查。