R&d
abbr. Research and Development 研究与开发
🗣️ 情景例句
The birthday dinner was held at a five-star restaurant.
生日宴会在一个五星级的宾馆里举办。
Could you introduce me to her?
你能把我介绍给她吗？
Good idea! That is much better than watching a bad TV programme!
好主意！这比看破电视节目要好多了。