Valvotomy
瓣膜切开术
🗣️ 情景例句
would love to read and be read to.
会喜欢阅读， 喜欢别人读给他们听。
Whom we love best to them we can say least.
对我们的最爱的人，我们可说的话最少。
a trough (the lowest point), a height (the vertical distance from the trough to the crest),
波谷（最低点）、浪高（从波谷到浪峰的垂直距离）