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But the agricultural extension system is now in some disrepair.
然而，此项农业推广体系如今已年久失修。
youdao
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Studied the agricultural extension gray system characteristic.
研究了农业推广灰色系统的特性。
youdao
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Studied the agricultural extension gray system characteristic.
研究了农业推广灰色系统的特性。
youdao