Wef
abbr. with effect from 有…的影响（或作用，效果）
📖 牛津释义
wef
abbr
缩写 = (esp commerce 尤用於商业) with effect from 自...起生效
wef 1 May 1986 自1986年5月1日起生效.
🗣️ 情景例句
Just because you major in English, don't think that you will have mastered real English.
不要以为你是英语专业的就能精通“真正”的英语。
No root, no fruit.
没有根，就没有果。
One Saturday afternoon, I hauled the machine into the garden and had a close look at it.
一个星期六的下午，我把割草机拉到了花园里，仔细检查了一番。