R-r interval
[医] R-R间期(心电图)
🧩 词语组成解析
🗣️ 情景例句
We are on good terms with each other.
我们彼此交情好。
After the flood, the carpets were wet for a month.
洪水过后一个月，毛毡还是湿的。
Please fill in the blanks when you are answering the test questions.
你考试时请把那些空填上。