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 grade are you in?
你在几年级？
I don't believe it.
我才不信咧！
Right. They're running and jumping all the time.
对，他们老是跑啊跳的。