Nodi sinuatrialis
[医] 窦房结
🧩 词语组成解析
nodus 的复数
🗣️ 情景例句
OK, let's take a look.
好了， 让我们来看一看。
Do not despise your enemy.
万勿轻敌。
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。