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
Do you think I have enough to show him?
觉得我有足够的照片给他看吗？
Great talkers are commonly liars.
能言的人谎话多。
Now she looks pale as if she were ill.
现在她脸色难看，好像病了一样。