P-r interval
[医] P-R间期(心电图)
🧩 词语组成解析
🗣️ 情景例句
When are you going camping again?
你什么时候再去露营？
Which one is better?
哪一个是较好的？
Why does the idea of progress loom so large in the modern world? Surely progress of a particular kind is actually taking place around us and is becoming more and more manifest.
为什么进步这个概念在现代世界显得如此突出？无疑是因为有一种特殊的进步实际上正在我们周围发生，而且变得越来越明显。