Retinyl-
[化] 视黄基
🧩 词语组成解析
视黄基
🗣️ 情景例句
What grade are you in?
你在几年级？
Happy is he who knows his follies in his youth.
记得青年时所做的愚笨事的人是幸福的。
Yes. What day is it tomorrow?
有。明天是什么日子？