R&d
abbr. Research and Development 研究与开发
🗣️ 情景例句
Would you mind telling me more about...?
你能告诉我关于…的情况吗？
A fool's bolt may sometimes hit the mark.
愚者千虑，必有一得。
The second factor is more interesting and more fundamental.
第二点更有意思，也更重要。