Valvuloplasty
[医] 瓣膜成形术
🗣️ 情景例句
We'll figure a way.
我们会想法子的。
Do you have any seats?
你有座位吗？
and a period (which is the time it takes a wave crest to travel one wave length).
和周期（浪峰走过一个波长所需的时间）。