Hrv
[医][=heart rate variability]心率变异性
🗣️ 情景例句
I've never seen anyone as strict as my boss.
我就没见过像我们老板这么严厉的人。
Man is to man either a god or a wolf.
人与人交往，不是上帝就是狼。
Yes, it is.
是的。