R&d
abbr. Research and Development 研究与开发
🗣️ 情景例句
There is something I want to ask you about clause 8.
我想问你有关第八条款的事。
When the sun comes in, the doctor goes out.
阳光入室，医生出屋。
The great racing driver, Sir Malcolm Campbell, was the first man to drive at over 300 miles per hour.
杰出的赛车选手马尔科姆。坎贝尔爵士是第一个以每小时超过300英里的速度驾车的人。