R-r interval
[医] R-R间期(心电图)
🧩 词语组成解析
🗣️ 情景例句
Then an adult must sign for you.
那就必须有一位成年人来替你签字。
Do you have any comments to make on the recent developments.
你对最近事态的发展有什么评论吗？
The writer stated that Rastus was in safe hands and would be returned immediately if Mrs.Ramsay paid a ransom of $1,000.
写信人声称拉斯特斯安然无恙，只要拉姆齐太太愿意支付1，000 英镑赎金，可以立即将猫送还。