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
Well, that's what I do.
是啊 ，我正是这么做的。
The sea complains it wants water.
大海总是抱怨水不够。
Good morning!
早上好！