Cách sử dụng
The word "underside" means the bottom or underneath part of something, such as the underside of a chair or the underside of a car. It is used to refer to the part that is facing downwards or the part that is not easily visible. For example, you might say "I need to clean the underside of the table" or "The mechanic had to fix the underside of the car." It is a useful word to describe the hidden or lower part of something.