Bindin
n. [生化](海胆精液细胞中的)结合素
🗣️ 情景例句
If you're under twenty-one years of age ...
如果你还不到二十一岁……
Don't forget to take care of him.
不要忘记照顾他。
Don't forget to keep in touch.
别忘了保持联系。