R and d program
[经] 研究与发展, 开发规划
🧩 词语组成解析
and
[ənd, ən,ænd]
conj. 和，与;而且;于是，然后;因此;
🗣️ 情景例句
I'd like a side order of onion rings, please.
我想再要一个洋葱圈。
True praise roots and spreads.
表扬真实，根深传远。
Today there are special kindergartens for Maori children, and the Maori language is now taught in more and more schools.
如今已有专门为毛利儿童而设的幼儿园，而且在越来越多的学校里讲授毛利语。