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
What time is it, anyway?
几点了，顺便问一下。
To jump into the pool
跃入游泳池中
Are there any trees in the picture?
画里面有树吗？