Cách sử dụng
The word 'exertion' means the physical or mental effort that you use to do something. For example, if you are lifting a heavy object, you are using physical exertion. If you are studying for a test, you are using mental exertion. You can use the word 'exertion' to describe any kind of effort you put into doing something. It is often used in the context of exercise or physical activity, but it can also be used in everyday situations.