Qrst interval
[医] Q-T间期(心电图)
🧩 词语组成解析
🗣️ 情景例句
What are you trying to say?
你想说什么？
Take time when time comes lest time steal away.
机不可失，时不再来。
No problem! Tell me, do I have to take them before or after meals?
“那不难！告诉我，我是在饭前还是饭后吃呢？”