Epf
abbr. electric and percussion fuze 电爆引信; electric and percussion fuze 电爆引信
🗣️ 情景例句
The whole house needs re-painting.
整个房间需要重新粉刷。
In vain.
白忙一场。
or of the habits of the social insects, let us say.
和昆虫群居的习性