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
How do you want your hot dogs?
你的热狗想要什么调料？
My sister worked as a secretary before she got married.
在她结婚了以前，我的姐姐为一位秘书。
It just took us a long time to get over the rocks.
我们花了很长时间才爬过岩石。