Mitralization
二尖瓣型心
🗣️ 情景例句
Don't count your chickens before they hatch.
心急吃不了热豆腐。
I wish you wouldn't joke around so much.
我希望你不要开如此的玩笑。
It was not long before a helicopter arrived on the scene to rescue the survivors of the plane crash.
不久，一架直升飞机飞抵飞机失事现场，来搭救这几个幸存者。