词典释义：
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Therefore, this system is worthful to be studied and extended.
因此，本系统有其研究和推广的实际价值。
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Perhaps, to exchange the permanent love with the unabiding life was worthful, however, could it be true?
也许用短暂的生命去换取永恒的爱情是很值得的，不过，短暂的生命又真的能换到永恒的爱情吗？
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Through four years practical application, this transfer scheme is successful and worthful in certain condition.
经过四年的生产实际考验，这种输送方式在特定条件下是有推广价值的。
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The conclusions and suggestions are valuable for the engineering design, and worthful as references for the similar projects.
对于类似接近桩基的暗涵工程，具有一定参考价值。
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As the practice shows, oral test, a worthful supplement to written test can be used as an examination method for reference in coordination with quality education.
实践证明，做为笔试的良好补充——口试为对素质教育进行考核提供了一种可借鉴的方法。
词根 worth
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worth adj. 值…的 n. 价值；财产
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worthy adj. 值得的；有价值的；配得上的，相称的；可尊敬的；应…的 n. 杰出人物；知名人士
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worthless adj. 无价值的；不值钱的；卑微的
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worthily adv. 可敬地；正当地
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worthiness n. 值得；相当；有价值
worthful，英语单词，主要用作形容词，作形容词时译为“有价值的；可贵的”。