【简介】感谢网友“雕龙文库”参与投稿，这里小编给大家分享一些，方便大家学习。
we see with our eyes. if we have poor eyesight, it will be difficult to see everything clearly. so it s important to take good care of our eyes. it s quite unbelievable that an eye ball is the same size as a table tennis ball. in fact the eye ball is like a kind of mirror. we should do eye exercises every day. we also need to have a rest after a long period of reading.
