Valvotomy
瓣膜切开术
🗣️ 情景例句
Let's have your counter-offer?
那你给个价吧。
It's not up to his usual standard.
这次没有达到他平时的水平。
A burst of activity associated with the laying of submarine cables soon confirmed the Challenger's observation that many parts of the ocean were two to three miles deep,
海洋中很多地方可深达两三英里，