Frantzel's sign
[医] 弗伦策耳氏征(二尖瓣狭窄时的杂音改变)
🧩 词语组成解析
🗣️ 情景例句
You two belong on stage! That was wonderful!
你们俩简直是职业演员！ 读得太棒了！
He skinned his knee.
他擦破了膝盖的皮。
In the letter he was asked to call at the station.
要他到警察局去一趟。