Phytomelane
植物黑素
🗣️ 情景例句
Are you here on business or for pleasure?
你来这儿是出差还是游玩？
One good mother is worth a hundred schoolmasters.
一个好的母亲顶得上一百个教师。
There was only one problem: the man upstairs.
住在楼上的人。