Cách sử dụng
The expression "let on" means to reveal or disclose something that was previously hidden or kept secret. It is typically used in informal situations, like in conversations with friends or family. For example, if someone asks you if you know something that you do know, you might say "I don't want to let on that I know about it yet." Essentially, it's a way of saying that you don't want to make it obvious that you know something, perhaps for strategic reasons or to avoid conflict.