Pons asinorum
“笨人难过的桥”（指欧几里得<几何学>中命题“等腰三角形两底角相等”）； 初学者难解的问题
🧩 词语组成解析
n. 脑桥\\n[医] 桥, 脑桥
🗣️ 情景例句
Who is it?
是谁?
You betrayed me!
你出卖我！
After I had sat down, he said that business was very bad.
待我坐下后，他说生意非常不景气。