单词：weed-control method
单词：weed-control method 相关文章
Agriculture Report - Getting a Firm Grip on Weed Control 农业报道 - 控制杂草生长的办法 This is the VOA Special English Agriculture Report. 这里是美国之音慢速英语农业报道。 When is a plant considered a weed? Experts at Pen
2013年VOA慢速英语(一)月
This is the VOA Special English Agriculture Report. When is a plant considered a weed? Experts at Penn State University have a simple answer: When its undesirable qualities outweigh its good qualities. Consider this: Crops generally produce several
VOA慢速英语2009年（五）月
A: 欢迎大家来到这期的美语训练班! 我是杨琳! B: 我是Mike! 杨琳，来告诉大家今天都要学什么! A: 好! 今天，我们要一起来聊聊慈善捐款，看看如何表达货真价实，还要告诉你如何自控! B: Yeah,
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[00:09.87]44) Edward Knipling [00:15.52]A leading American research scientist died last month at his home in Virginia. [00:22.88]Edward Knipling was ninety-one years old. [00:26.75]Mister Knipling was a world famous expert in the study of insects. [0
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Getting a Firm Grip on Weed Control This is the VOA Special English Agriculture Report. When is a plant considered a weed? Experts at Penn State University have a simple answer: When the undesirable qualities outweigh the good qualities. Consider the
2013年VOA慢速英语(五)月
Health Report - Does a Birth Control Method Raise HIV Risk? 健康报道 - 避孕药物是否真会增加艾滋病毒感染风险？ This is the VOA Special English Health Report. 这里是美国之音慢速英语健康报道。 The World Health Orga
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