亚洲免费不卡_在线视频精品_国产尤物精品_久久久久网址_久久精品91_欧美va天堂在线_狠狠入ady亚洲精品_亚洲午夜精品福利_国产精品草草_午夜精品久久99蜜桃的功能介绍

There are many students in middle school wear the glasses, and many of them were wearing the glasses since little. We have to protect our eyes, prevent them from the short-sightedness. We should keep a good sitting posture, never read the books too closely. We’d better have a short break every hour of reading, close eyes or look at the distance. We should do the eye exercises every day. In the evening, we also shouldn’t read while we are lying. And more important, we shouldn’t spend hour and hour starring at our cellphone. We all should protect our eyes.

有很多中學生都帶著眼鏡，其中很多人從很小就開始戴了。我們必須要保護我們的眼睛，預防眼睛近視。我們應該保持良好的坐姿，看書的時候不要離太近。我們最好每看一個小時的書能短暫休息一下，閉上眼睛或者看向遠方。我們應該每天都做眼保健操。晚上的時候，我們也不要邊躺著邊看書。更重要的是，我們不要連續花幾個小時盯著手機看。我們都應該保護我們的眼睛。