A-v node
房室结（心脏的一部分, atrioventricular node）
🧩 词语组成解析
node
[nəud]
n. 节点;（计算机网络的）节点;[医]结节;植物的节;
🗣️ 情景例句
Oh, it's going to be all right.
不会有问题了。
It always take time to get used to a new place.
初来乍到，总要过些时候才会习惯的。
Just now we all watched you sign to show that you had received the cheque.
刚才我们大家都观察到了你为表明已收到那张支票而签名。