Ibi
[医][=inter-beat intervals]心搏间期
🗣️ 情景例句
what do you think this big surprise is?
你认为这一件大惊喜会是什么？
Many a true word is spoken in jest.
戏言寓真理。
How many different models of this do you offer?
这个你们有多少种不同的型式。