R&d
abbr. Research and Development 研究与开发
🗣️ 情景例句
the cities, the special places, and the people.
一些城市，一些特别的地方以及人们的摄影选辑。
He insisted on going along.
他坚持要一个人去。
I would rather stay at home alone.
我宁愿独自呆在家。