Gerhardt's triangle
[医] 格哈特氏三角(检未闭动脉导管)
🧩 词语组成解析
🗣️ 情景例句
What's the spelling of your family name, sir?
您的姓怎么拼，先生？
Half the world knows not how the other half lives.
富人不知穷人苦。
The noble stared at the blank sheet of paper for a few seconds.
贵族盯着纸看了几秒钟，