Cof
abbr. cause of failure 导致失败的原因; coefficient of friction 摩擦系数; cost of funds 投资成本
🗣️ 情景例句
Are the people friendly in China?
中国的人们友好吗？
I got there by plane.
我坐飞机去的。
My brother is seeking a job.
我弟弟正在找工作。