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
That's it.
就这样。
Can you keep an eye on the baby while I go shopping?
你能否在我上街买东西的时照看一下孩子？
It only remains for me to pass all the money that she had to the right person.
对我来说，剩下的只是将她所有的钱交给合法的继承人。