Pappus
n. 冠毛\\n[医] 软毛, 柔毛, 胎毛, 冠毛(植物)
🗣️ 情景例句
He's living on easy street.
他过得很富裕。
In secondary school, children study mathmatic、phsicas and chemistry.
中学的小孩会读到数学、物理和化学。
Thanks very much. I must go!
谢谢，我必须走了。