Pfo
[医][=patent foramen ovale(cordis)]卵园孔未闭（心脏）
🗣️ 情景例句
Michelle is very grown up for a ten-year-old, huh?
以一个十岁的孩子来说 Michelle很成熟 ，是吗？
My brother is twice as tall as your sister.
我弟弟比你妹妹高一倍。
After watching the red-dressed women walk by, I went to the rooftop and watched workers weave wastebaskets.
看那群红衣女郎走过，我爬上屋顶看工人们编垃圾筐。