Pfo
[醫][=patent foramen ovale(cordis)]卵園孔未閉（心臟）
??? 情景例句
I have to agree with you.
我不得不同意你的看法。
He preaches best who lives best.
言教不如身教。
So, ask businesses on both sides of the Atlantic, why have two lots of tests where one would do?
因此，大西洋兩岸的企業都在問，當一套測試可以解決問題時，為什么需要兩套呢？