Bef
abbr. 在…以前（before）
🗣️ 情景例句
We'll open a letter of credit if you promise to effect shipment one month earlier.
如果你方答应提前一个月交货，我们就同意开信用证。
Do you like the soft touch of snowflakes on your face?
你喜欢柔软的雪花触到脸上时的感觉吗？
In the beginning they used to carve Chinese characters on stones to record important dates in history.
开始时，他们常把汉字刻在石头上，记载历史上重要的日期。