Ngb
abbr. negative guard board 底片档板，阴极档板
🗣️ 情景例句
The minister has indicated that he may resign next year.
该大臣已经示意他明年可能会辞职。
They are so busy these days, that they don't even have time for their friends.
他们最近忙得没法和朋友见面。
Then give us three cases of this.
那么这种的就买三箱好了。