为什么人会眨眼睛?（英文）

作者：姜琴

来源：阅读, 2019, (21): 36.

<正>When you blink (眨眼)your eyes,you clean them. Blinking also keeps your eyes wet(湿润的). Your eyes don’t feel good when they are dry (干燥的). Most people blink every four seconds(秒).