Rcbf
区域性脑血流（Regional Cerebral Blood Flow）
🗣️ 情景例句
What currency do they use in U.S.A.?
在美国人们用什么货币？
Save while you may, no morning sun lasts a whole day.
能节俭时就节俭，朝阳难照一整天。
The sandwiches were on the plates, and the candles were on the cake. Ann felt very happy.
三明治在碟子里，蜡烛插在蛋糕上。安觉得很愉快。