P-r interval
[医] P-R间期(心电图)
🧩 词语组成解析
🗣️ 情景例句
If you'd like to hear some new English songs, I suggest you download them from the web.
如果你想听一些新的英文歌，我建议你上网下载。
He that is master of himself will soon be master of others.
能主宰自己的人不久就可以主宰别人。
The Tomorrow Land Building?
你问未来世界大厦？