为什么是"Computers are the second most useful invention of the w

为什么是"Computers are the second most useful invention of the w computers are the second most useful ( ) of the world Computers are the second most useful ____ of the world. computers is one of the most useful inventions computers are the most useful invention of all time 是什么意思? The bicycle is one of the simplest but most useful invention The bicycle is one of the simplest yet most useful invention 英语翻译The Most Useful Invention of All Time?Barbara—Saturday,A Which of these do you think is the most useful invention?中do 英语翻译Computers are very useful and the use of computers is gr what's the most useful invention?我有急用. The most useful invention to me - 开头的英语作文