Cách sử dụng
The expression "follow up" means to check or take action on something that was started earlier. For example, if you apply for a job and the employer says they will contact you in a week, you may want to "follow up" by sending them an email or making a phone call to see if they have made a decision on your application. It's a way of keeping things moving and making sure that everything gets done that needs to be done.