| 词汇 | R & D |
| 释义 | R & D 1 ENTRIES FOUND: R & D (abbreviation) R & D abbreviation R & D abbreviation Learner's definition of R & D research and development研究和开发 She works for a computer firm doing R & D.她在一家计算机公司搞研发。 She works in the R & D department.她在研发部门工作。 |
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