Frac
abbr. frationator reflux analog computer 汇流相似体电脑
🗣️ 情景例句
He's busy preparing for class.
他忙着准备功课。
To make enemies, talk; to make friends, listen.
要成仇敌，多讲；要成朋友，多听。
I am, Miss Zhao, said Wei Hua. Today is Saturday, September 19th.
“是我，赵小姐，”魏华说，“今天是9月19日，星期六。