Bolk's retardation theory
[医] 博耳克氏发育停滞学说
🧩 词语组成解析
retardation
[[ˌritɑr'deʃən]]
n. 迟延, 妨碍, 阻止\\n[化] 缓聚作用
🗣️ 情景例句
He was dumb from birth.
他生下来就是哑巴。
I'm not in the mood.
我没心情。
We're going to a really nice place down by the river. It's a good place for a camp and there's plenty of shade under the trees.
我们要沿河去一个很好玩的地方。那是个很好的宿营地，有很多树阴凉。