中译英 在线等
原来估计这项工程将费时五年，但由于工人及工程师门的创造性劳动，工程大大提前完成了。
作为一个好的运动员，你应该抽出时间去研究怎么样在比赛中利用对方的弱点。
这次即将到来的通信革命带来的好处和问题都将比个人计算机革命所带来的好处和问题要大得多。
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参考答案:This building project was scheduled to complete in 5 years. But it is completed far ahead of schedule, thanks to the creative work from workers and engineers.
As a good athelete, you should spend some time to study the weaknesses of your opponents.
The new conviniences and problems brought by this new communication technology revolution will be bigger than those brought by the computer revolution.