研发师英语怎么说

研发师英语的说法是"research and development engineer"。它的来源可能源自于研发师的工作内容，即负责研究和开发工程方面的事物。例如：

John is a research and development engineer at a technology company. 约翰是一家科技公司的研发工程师。
She has been working as a research and development engineer for over ten years. 她担任研发工程师已有十多年了。

希望这些信息对您有帮助。