Ngb
abbr. negative guard board 底片档板，阴极档板
🗣️ 情景例句
Choose which you please.
先你中意的好了。
We've no problems.
我们没有问题了。
I must go to the grocer's.We haven't got much tea or coffee, and we haven't got any sugar or jam.
我得去一下食品店。我们的茶叶和咖啡不多了，糖和果酱也没有了。