Prehn's sign
[医] 普雷恩氏征(鉴别附睾睾丸炎与精索扭转的一种测验)
🧩 词语组成解析
🗣️ 情景例句
Please sit down.
请坐下。
Education has for its object the formation of character.
教育的目的在于培养品德。
You can call me any time.
你可以随时打电话给我。