wait a minute/moment/second idiom
B1 等等，等一下（用于突然想起某件重要的事时）
said in order to interrupt someone or to get their attention, or when you have suddenly thought of something important
Now, wait a moment - I don't agree with that. 喂，等等——我不同意那样做。
Wait a minute - I've just had an idea. 等一下——我刚想出个主意。