Cbf
[医] 脑血流量
🏥 医学释义
①脑血流量 ②临床血流量计
🗣️ 情景例句
They can keep a record of all of the important dates
他们可以记录下重要的日子。
They jumped at the unexpected noise.
他们因突如其来的声音吓得跳了起来。
This is because they had no natural enemies until the arrival of humans and therefore did not need to develop flying wings.
这是因为人类到达这里之前，这些鸟没有天敌，因此，它们不需要发育飞行的翅膀。