R-r interval
[医] R-R间期(心电图)
🧩 词语组成解析
🗣️ 情景例句
I've always wanted a springer spaniel.
我一直想要一只激飞狗。
I don't want to be lonely the rest of my life.
可我不想余生过得那么孤独。
Though a little suspicious this time, the policeman gave him the same answer.
虽然那位警察这次有点疑心，但还是对他作了同样的回答。