Cách sử dụng
The expression "warm up" means to prepare your body or a certain part of your body for physical activity by doing some easy exercises or stretches. For example, if you are going to play soccer, you might warm up by walking or jogging around the field and doing some leg stretches to get your muscles ready to move. "Warm up" can also mean to prepare yourself mentally or emotionally for something. For example, if you are going to give a speech, you might warm up by practicing deep breathing and visualization techniques to calm your nerves and help you focus.