大院的英文：
courtyard; compound

参考例句：

They entertained a stream of visitors from Europe at the "Peace Compound".
他们在“和平大院”里接待了川流不息的欧洲来客。

courtyard是什么意思：
n. 庭院；天井

Sunlight was streaming into the courtyard.
阳光照到院子里。

The children always racket about in the courtyard.
孩子们总是在院子里吵吵闹闹。

The old man was romping in the courtyard with his grandsons.
这位老人在院子里与他的孙子们乱跑乱叫地耍闹。

Courtyard economy is booming in that rice-growing county.
在那个以种植水稻为主的县里，庭院落经济十分红火。

She sighed and looked out the window at the trees in the courtyard.
她叹了口气，朝窗外庭院里的树望去。

compound是什么意思：
n. 混合物，有围墙（或篱笆等的）住宅群
adj. 合成的
v. 使混合；使合成；加重；调停

nobelium compound
锘化合物

What is affixation, conversion and compounding?
什么是词缀法、 转化法和合成法？

These compounds have structural similarities to penicillin.
这些化合物结构上与盘尼西林相似。

First, compound all the ingredients.
首先将所有原料混合。