Bef
abbr. 在…以前（before）
🗣️ 情景例句
I'm afraid I don't share your opinion.
我不敢苟同。
We know not what is good until we have lost it.
有的时候不爱惜，失了以后空叹息。
You forget to write down the date of your departure.
您忘了写离店日期了。