Popp
[医][=peripheral occluded portal pressure]周围阻塞性门静脉压
🗣️ 情景例句
I'm really concerned about them,
我真的为他们担心，
I know the boy whose father is a policeman.
我知道那个男孩的父亲是警察。
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。