在现在社会视力问题已经极为普遍，有将近80%以上的青少年近视，如果用英语来表达视力的各种描述呢：
Many of us spend hours every day working at a computer. As a result, ______ ______, ______, and ______ _______ are common complaints. Most people also ______ less frequently when they are concentrating, resulting in poor ______ production and dry, ______ eyes. Here's how you can change your computer use and ______ your discomfort:
1. ______ your computer screen so that it is 50-65 cm from your eyes, just below eye level
2. adjust lighting to ______ ______
3. take frequent breaks, blink often to keep your eyes _______, and let your eye muscles relax by looking into the distance every 15 minutes.
以上的方法不仅仅是语言的学习，也让大家懂得如何保护自己的眼睛。