Cách sử dụng
The expression "fall back" is often used to describe a situation where you have to return to a previous position or plan because the current one is not working. For example, if you're driving on a route you're not familiar with and get lost, you may have to fall back to the route you know to get back on track. It can also be used in a more general sense, like falling back on your savings when you lose your job. In both cases, "fall back" is about going back to something you're familiar with or relying on something you've already established.