Pfo
[医][=patent foramen ovale(cordis)]卵园孔未闭（心脏）
🗣️ 情景例句
Thank you.
谢谢。
There's still hope.
还是有希望的。
But suppose the earth could be covered with sensors spaced one foot apart,
假设地球上可以布满传感器，每个相隔1英尺，