- do research into进行…。的研究;
- empirical research实验法研究;
- field research实地研究，实地调研;
- medical research医学研究；医疗研究;
- marketing research销售调研;
- market researchn.市场调查;
- original version原著;
- original sinn.原罪;
- original sample原样，买方收到的卖方寄来的样本;
- original meaning本义;
- original impulse起始脉冲;
- original equation原始方程式
- original currency原币;
- original copy正本，原本;
- original carrier原运送人;
- original budget原来预算;
- operations researchn.<美>作业研究，运筹学;
- research project研究计划[项目];
- research method研究方法;
- research into就…研究;
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