rash

/ræʃ/

any red eruption of the skin

中文释义：皮疹；疹子

The child developed a red rash on his arms after touching the plant.

孩子接触那株植物后，手臂上起了红色皮疹。

A heat rash can be uncomfortable, especially in humid weather.

痱子会让人不舒服，尤其是在潮湿的天气里。