Cách sử dụng
The expression "be up against a brick wall" means to be faced with a difficult problem or obstacle that seems impossible to overcome. It implies that all efforts to find a solution have failed, and you are stuck and cannot move forward. For example, if you have tried every possible way to get a job and have had no success, you could say, "I'm up against a brick wall when it comes to finding a job." This expression is often used when someone is feeling frustrated, helpless, and stuck.