（拿回你的499）懂你英语 Level4 Unit1 Part1 (Pains and Sickness)

Headaches can be very painful and can last for a long time.

If you have a headache, your head hurts.

A sprained(扭伤的) ankle can be so painful that you can't walk.

Someone with a sprained ankle may need to use crutches （拐杖）to walk.

If you have a sore throat, it may be painful to swallow（吞咽）.

A sore throat（咽喉痛） can be caused by viruses（病毒） or bacteria（细菌）.

A burn is an injury to the skin caused by fire or heat.

If you get too close to a fire, you will be burned.

An earache（耳痛） is a sharp, dull （钝的）or burning pain in the ear.

Common causes of an earache include an infection（感染）, a changing air pressure（空气压力变化） or water in the ear.

图片发自App

图片发自App