Dear everyone in R&D department是什么意思

Dear everyone in R&D department是什么意思 R&D Department R D department什么意思 department是什么意思? department store中的department是什么意思? 英语翻译Your manager wants everyone in the department to spend a secretary in English department翻译成汉语是什么意思 hello everyone in our planet中文是什么意思 logistic department是什么意思 physical education department是什么意思 department store是什么意思 production management department是什么意思