🧩 词语组成解析
[医][=pancreatic oncofetal antigen]胰胎瘤抗原, 胰癌胚抗原
🗣️ 情景例句
A critic was there this morning.
一个评论家早上去过了。
I finish working at 5:45 p.m.
我在下午5:45点完成工作。
You are never too old to learn.
活到老，学到老。