Fetosulfoglycoprotein
胚胎性硫糖蛋白
🗣️ 情景例句
What classes are mandatory for your major?
你的专业什么课是必修的？
A chain is no stronger than its weakest link.
链条的坚固程度取决于它最薄弱的环节。
2-10-net-30.
2-10-net -30。