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 guess we'll be seeing Alexandra again.
我想我们不久又将见到Alexandra。
He who wants a mule without fault, must walk on foot.
如要骡子无缺点，只有自己徒步行。
We both tried to get the coins, but it was too late.
我们俩都试图把这两枚硬币拿出来，但太迟了。