Rcbf
区域性脑血流（Regional Cerebral Blood Flow）
🗣️ 情景例句
There is nothing interesting in the newspaper.
报纸上没有什么有趣的新闻。
Please inform us the quantity that can be supplied from stock.
请告知可供现货的数量。
I haven't seen him for five years.
我五年没有见到他了。