Cách sử dụng
The expression "up against something" is typically used when someone is facing a difficult challenge or obstacle. It means that the person is in a situation where they are struggling to overcome something. For example, if someone is "up against a deadline," it means they are trying to complete a task before a certain time, and it's proving to be difficult. Another example could be "up against a tough opponent," where a person is facing a challenging adversary in a competition or a game. So, the expression is used to describe a situation where someone is struggling to overcome a difficulty or challenge.