R&d
abbr. Research and Development 研究与开发
🗣️ 情景例句
Sure. I will. You can count on that.
我一定会。
Better poor with honour than rich with shame.
穷得光荣，胜过富得可耻。
but it is of a kind that, if he meets it, he can readily understand and deal with.
但如果有这种情况，露营者也容易理解，知道如何对付，