Sander's sign
[医] 山德斯氏征(心包粘连时的一种望诊体征)
🧩 词语组成解析
🗣️ 情景例句
Sheet is a five-letter word. Sheet
是五个字母的单字。
Ok, bye-bye.
好吧，再见。
Before you leave the lab, make sure the electricity is turned off and the windows are shut.
你们离开实验室前，务必要关上电源，关好窗户。