Ngb
abbr. negative guard board 底片档板，阴极档板
🗣️ 情景例句
but I think I can be of some help to you.
但我觉得我可以对你略有帮助。
That's why he is now concentrating on conversation at a language school near his home.
这就是他在他家附近的一所语言学校专攻口语的原因。
Have you ever put your trousers in the washing machine and then remembered there was a large bank note in your back pocket?
你有没有把裤子塞洗衣机，然后又想在裤子的后兜有一张大面值的纸币？