Cách sử dụng
The expression "nod off" means to fall asleep, usually unintentionally. It can be used to describe someone who is sitting or lying down and starts to doze off. For example, if you are in a boring meeting, you might nod off and start to doze off without realizing it. Or if you're watching TV and you start to feel sleepy, you might nod off on the couch. It's a common phrase and is often used in casual conversation.