Ibi
[医][=inter-beat intervals]心搏间期
🗣️ 情景例句
Sit down. Sit down.
请坐。请坐吧。
When did you find this book?
你什么时候找到这本书的？
Mr. Fang is in London. He's looking for different places. He needs some help.
方先生在伦敦。他在寻找一些地方，他需要帮助。