单词：undermilked
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单词：undermilked 相关文章
This is the VOA Special English Agriculture Report. Technology is making life easier for some dairy farmers. They use robotic systems to milk their cows. These systems are designed to reduce labor and increase milk production. Here is how they work:
发表于:2019-01-11 / 阅读(54) / 评论(0)
VOA慢速英语2009年（五）月
VOA慢速英语2009年（五）月