Sinus node
窦房结
🧩 词语组成解析
n. 窦, 静脉窦, 凹陷处
node
[nəud]
n. 节点;（计算机网络的）节点;[医]结节;植物的节;
🗣️ 情景例句
I'm really glad to see you.
我真高兴看到你。
Wisdom is better than gold or silver.
智慧胜过金银。
It's Jim. He's in that tree. He can't get down. Can you help him?
是吉姆，他在树上，下不来了，你能帮他吗？