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
and how hard it is
他还说这件事很难
Which one do you like?
你喜欢哪一个？
What's that fly doing in my soup?
我汤里的这只苍蝇在干什么呢？