Retinaldehyde
视黄醛
🗣️ 情景例句
Please sit down, Mr. Mark.
请坐吧，马克先生。
You are equipped with new knowledge, new ideas, and new insights.
你们拥有新知识、新思想、新眼光。
I decided to take her by train.
我决定带她乘火车去。