These second-hand computer components are still useable.
这些二手的电脑零件还可以使用。
They have agreed on the price for the second-hand computer.
他们都同意这个二手电脑的价格。
On the one hand, computer based education and computer aided instruction are the very important domains of the computer applications;
一方面，计算机辅助教育与计算机辅助教学是计算机技术非常重要的应用领域；
On the one hand, computer based education and computer aided instruction are the very important domains of the computer applications;
一方面，计算机辅助教育与计算机辅助教学是计算机技术非常重要的应用领域；
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