Sinuatrial
a. [解]窦房的
🗣️ 情景例句
Scientific discoveries are ofter applied to industrial production methods.
科学新发现常应用于工业生产的方法。
I need the change for the stamp machine.
我需要投入自动售邮票机的零钱。
I was waiting for the sound of the other shoe!
我一直在等待另一只鞋落地的响声！