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
Yes, but you did, and we've got our lunch.
没错， 但你念了， 使我们钓到了午餐。
I'm coming.
我来啦。
I don't know. I think he's very old.
不知道。我想他年纪一定很大了。