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  3. Computers are regarded as a great technological improvement which saves people much time and energy.

Computers are regarded as a great technological improvement which saves people much time and energy.

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问题 Computers are regarded as a great technological improvement which saves people much time and energy.
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答案计算机的出现节省了人们大量的时间和精力，所以被认为是一项伟大的技术进步。
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