Cách sử dụng
The expression "in the dead of night" means during the middle of the night, usually when it is very quiet and dark outside. It can be used to describe something happening secretly or mysteriously, or to emphasize that something is happening at a time when most people are asleep. For example, "She received a knock on her door in the dead of night" or "I woke up in the dead of night to a strange noise outside."