Poa
[医][=pancreatic oncofetal antigen]胰胎瘤抗原, 胰癌胚抗原
🗣️ 情景例句
The change is yours.
找回的钱给你。
Are you in touch with him now?
你现在和他有联系吗？
a trough (the lowest point), a height (the vertical distance from the trough to the crest),
波谷（最低点）、浪高（从波谷到浪峰的垂直距离）