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 can't put it strongly enouth, I need to make a sale before the end of the week.
我郑重宣布，我要在本周末前搞一次大减价。
What did the doctor say?
医生说了什么吗？
Looking round, I realized with a shock that I was the only passenger left on the bus.
我环视了一下身旁，惊奇地发现车里就只剩我一个乘客了。