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
You're welcome.
不用客气。
They that marry in green,their sorrow is soon seen.
年纪轻轻就结婚，为时不久便悔恨。
Otherwise we won't be able to hear ourselves talk.
否则我们的谈话彼此就都听不到了。