Cách sử dụng
"Let the side down" means that someone failed to do their part of a job or task, which caused problems for the group. It is often used when someone is expected to contribute to a group effort or project, but they do not do their part properly or at all. It can refer to anything from playing on a sports team to working on a group project at school. It is a phrase with a negative connotation, as it implies that someone didn't meet expectations or responsibilities.