Pfo
[医][=patent foramen ovale(cordis)]卵园孔未闭（心脏）
🗣️ 情景例句
They're here!
他们到了。
Do you usually play baseball on the weekend?
你通常在周末打棒球吗？
I'm afraid he's out. He won't be back until tomorrow.
对不起，他外出去了，明天才回来。