Flack's node
[医] 弗勒克氏结, 窦房结
🧩 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
He is tough to work with.
他很难共事。
A great ship asks deep waters.
大船要走深水，蛟龙要在海中游。
Don't talk to me like that!
别那样和我说话！