Retin
[医]维A（维生素A衍生物类）[词缀]
🗣️ 情景例句
He is still unable to express himself in English.
他仍然不能用英语表达自己的意思。
There are some feelings that time cannot benumb.
人类的感情是历久不衰的东西。
I suggest you go up to our next higher price level.
我建议您采用我们价格再高一级的货