Hrv
[医][=heart rate variability]心率变异性
🗣️ 情景例句
It was an extremely difficult and dangerous task.
这是一项极度困难的危险的工作。
Judge not of men and things at first sight.
审人论事宜谨慎，一见之下莫断定。
Is that hard? I mean, the jazz violin?
弹奏难吗？我是指拉爵士小提琴。