Hello, students.Today we are pleased to welcome Doctor Li from the City Hospital.He will give an important talk about eye care and healthy vision.The talk starts at 10:30 a.m.in the school hall, so please arrive on time and be quiet during the talk.In his talk, Doctor Li will explain how spending too much time on phones can harm our eyes.He will also suggest taking a short break every 40 minutes and looking into the distance to relax our eyes.He will remind us to do eye exercises at least twice a day.Besides, he will mention that eating more fish, carrots, and other healthy foods helps protect eyesight.Let's listen carefully and learn how to protect our eyes.Stay healthy, everyone.