Ngb
abbr. negative guard board 底片档板，阴极档板
🗣️ 情景例句
Excuse me.
请原谅。
We want to purchase Chinese tea. Please send us your best offer by fax indicating origin packing, quantity available and the earliest time of shipment.
我们欲购中国茶。请用电传给我们报最好价，并说明产地、包装、可供数量及最早发货日期。
Last summer it was very dry, too.
去年夏天也是干得很。