i find it in this site: http://www.iciba.com/hell/

hell n. 地狱; 冥府 苦境; 难地 牢狱 赌博场; 娼寮 大混乱, 毁坏 恶魔; 恶势力 垃圾箱 训斥, 咒骂(用以加强语气) 胡闹, 愚蠢 [俚](印刷所用的)坏铅字箱 [古]裁缝放碎 布的容器 a hell of a life 人间地狱 a hell of a noise 大骚闹 Go to hell! 滚蛋! 该死! hell ship (对水手进行虐待的)地狱狂 oh hell! 畜生! What the hell are you doing? 你到底搞什么? He expected to catch hell for coming home late. 他因回家晚而准备挨骂。 习惯用语 a hell of a (用来加重语气)极恶劣的, 不象样的, 使人受不了的 the hell of a (用来加重语气)极恶劣的, 不象样的, 使人受不了的 all hell let loose 一团糟 (as) black as hell 漆黑的 as hell [口]非常地, 极端地, 可怕地 as sure as hell [口]肯定无疑, 绝对可靠 be hell for 对...极度关心; 竭力坚持 be hell on [美俚]使受苦, 损害; 对...很苛刻[有害] beat hell 令人吃惊 超过一切 Better to reign in hell than serve in heaven. [谚]宁在地狱为王, 不在天堂为臣。 blast hell out of sb. 痛打某人; 大大凌驾于某人之上 knock hell out of sb. 痛打某人; 大大凌驾于某人之上 catch hell 使人受罪; 挨痛骂; 受严惩 get hell 使人受罪; 挨痛骂; 受严惩 give hell 使人受罪; 挨痛骂; 受严惩 get the hell out (of a place) [口]赶快离开(某地) give sb. hell 痛斥某人, 狠狠揍某人一顿; 给某人一点厉 害 go through hell (and high water) 冒很大艰险, 赴汤蹈火 go to hell 完蛋, 毁灭 Go to hell! 滚开! 见鬼去吧!

A computer is a machine that manipulates data according to a list of instructions. The first devices that resemble modern computers date to the mid-20th century (around 1940 - 1945), although the computer concept and various machines similar to computers existed earlier. Early electronic computers were the size of a large room, consuming as much power as several hundred modern personal computers.[1] Modern computers are based on tiny integrated circuits and are millions to billions of times more capable while occupying a fraction of the space.[2] Today, simple computers may be made small enough to fit into a wristwatch and be powered from a watch battery. Personal computers, in various forms, are icons of the Information Age and are what most people think of as "a computer"; however, the most common form of computer in use today is the embedded computer. Embedded computers are small, simple devices that are used to control other devices — for example, they may be found in machines ranging from fighter aircraft to industrial robots, digital cameras, and children's toys. The ability to store and execute lists of instructions called programs makes computers extremely versatile and distinguishes them from calculators. The Church–Turing thesis is a mathematical statement of this versatility: any computer with a certain minimum capability is, in principle, capable of performing the same tasks that any other computer can perform. Therefore, computers with capability and complexity ranging from that of a personal digital assistant to a supercomputer are all able to perform the same computational tasks given enough time and storage capacity. if you wanna know about it,you can find it in this site: http://en.wikipedia.org/wiki/Computer

it is the same thing. how about +verb-ing.

这要看你核心词汇多少，就是你所能写出的英语单词量，单词越多你的文章就会越完美，有些句子还是需要在文章细细体会。其实语言就是一种高级模仿，文章就是最好的老师。