Valvotomy
瓣膜切开术
🗣️ 情景例句
Tomorrow morning at ten o'clock. Try it.
明早上午十点。来试一试吧。
Stereo set playing a record
放着唱片的立体声唱机
As a result of these wars and diseases, the Maori population fell from 100,000 to 42,000.
由于这些战争与疾病，毛利人的人口从100，000人下降到4，200人。