Compound b
[医] 化合物B, 皮质(甾)酮
🧩 词语组成解析
🗣️ 情景例句
Is a letter of credit OK?
用信用卡可以吗？
A cock is bold on his dunghill.
站在粪堆上，公鸡也称王。
After a short while he started directing films himself.
不久，他开始自己导演电影。