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
My mother has a touch of the flu.
我妈得流感了。
He already has a phonograph,but he doesn't have a radio yet.
他已经有一架留声机，但是他还没有收音机。
Suddenly, she saw a man near a bus stop.'I can ask him the way'.she said to herself.
突然，她在公共汽车站附近看到一个男人。“我可以向他问路，”她想。