形容词中文翻译
中文翻译：未改进的
同义词：
['unimproved', "unimprovement例句：1. The company's product line has not been improved in the past five years.（该公司的产品线在过去五年里没有改进。）2. The old house is still standing", "but it hasn't been improved since the 1970s.（这所老房子仍然矗立着，但自20世纪70年代以来就没有进行过改善。）"]
例句：
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1. The company's product line has not been improved in the past five years.
该公司的产品线在过去五年里没有改进。
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2. The old house is still standing, but it hasn't been improved since the 1970s.
这所老房子仍然矗立着，但自20世纪70年代以来就没有进行过改善。
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3.The farmers have made improvements to their farming techniques over the years.
这些农民多年来已经对他们的农业技术进行了改进。