Retinyl
视黄基
🗣️ 情景例句
My son must have put you to a lot of trouble.
我儿子一定给你带来不少麻烦。
A crow is never the whiter for washing herself often.
乌鸦不管怎样经常洗澡，也不会变白。
In the middle of the night, two boys woke up and began shouting.
午夜前后，有两个孩子醒了，大声叫了起来。