Hrv
[医][=heart rate variability]心率变异性
🗣️ 情景例句
I work out at the gym everyday.
我每天都在体育馆进行锻炼。
Our guarantee covers maintenance for both parts and labor.
我们的保证是包括更换零件和免费保养。
How much cloth does it take to make a skirt for the girl?
女孩做一条裙子要用多少布？