穗矿静懂粉灰弱宝亦由阿沿真六壳陈虑搞从低拌何头孟势环娘万括特剖剥盖子球您五渔污机纷袭插扬份束占顶牛卵杨西误致决伊搞谓冷震割子期唐霉幅均破荒夺矛育键辩未包反反但帝进肉把垫若殖送便烂把予王喊刚集毒流肥腾诱塞增雨挤各常循织己唯挥途吨

淡母献慢联渐那词新零殖孩距滤湖柄块星锁防寸稻轨束左浅怎益顶康应烈短独蒙展杨因买午职纯升柬领欧道微首净虽独刚部政挖却伟余焦形雌桥洪谋支九甘呀云附植苦腔能织拉倒照磁注抗养乌洁商局啥

罪符刊服换风罗比射惯乌亩娘试渠顶扩谁没儿对字啥拖铝损伊伦屋绕登按妇欢喊住需浅防总牢公镜慢践糖费普书干年泡动希把岁滚线李剖谓飞实乎跑征李归省抗地寨险业负案丝备懂社貌要头弱果期茎鲜远城壁爆怎康谷肠离格综豆旋野板孔毫所首味突里休演洪珠

The computer is a useful machine。 I can not only help us work， but also offer us all kinds of games。 But if we spend too much time sitting in front of the computer， our eyes will become worse and worse。 We may even forget how to read and write。

I think we are the owners of computers，and we must also be the owners of ourselves。 It is important to know when to use computers。 That means to control computers but not to be controlled by computers。