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
Claim concerning transportation should be referred to the shiping company.
涉及运输问题，应当向船运公司提出索赔。
I like painting,but I wouldn't want it to be my life's work.
我喜欢油画，但是我不想要它是我一生的工作。
Those who never have to move house become indiscriminate collectors of what can only be described as clutter.
那些从来不必搬家的人们成了一种无所不容的收藏家。他们专门收藏那些只能被称作杂货的东西。