Cách sử dụng
The expression "drop behind" means to fall behind or lag behind others in a group, race, or task. For example, if you are running with a group of friends and you start to run slower than them, you are dropping behind. It can also be used in a task or project, for example, if you are not keeping up with the work, you are dropping behind. It is important to keep up with the pace of the group or task to avoid dropping behind.