1. Headaches can be very painful and can last for a long time.
2. If you have a headache your head hurts.
3. A sprained ankle can be so painful that you can't walk.
4. Someone with a sprained ankle may need to use crutches to walk.
5. If you have a sore throat, it may be painful to swallow.
6. A sore throat can be caused by viruses or bacteria.
7. A burn is an injury to the skin caused by fire or heat.
8. If you get too close to a fire, you will be burned.
9. An earache is a sharp, dull or burning pain in the ear.
耳痛是指耳朵里尖锐、钝痛或灼痛。
10. Common causes of an earache include an infection, a change in air pressure or water in the ear.
耳痛的常见原因包括感染、耳压或耳朵进水的变化。
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