带进来的杂草;非乡土性杂草

VOA慢速英语2013 Agriculture Report - Getting a Firm Grip on Weed Control

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

发表于:2018-12-07 / 阅读(130) / 评论(0)

2013年VOA慢速英语(一)月

VOA慢速英语2010年-Development Report - Imported Foods Ra

This is the VOA Special English Development Report. The World Health Organization says obesity rates are rising in Pacific island countries. So, too, are health problems linked to being overweight. The WHO says a major reason for the rising obesity r

发表于:2019-01-11 / 阅读(35) / 评论(0)

2010年VOA慢速英语(八)月

VOA慢速英语2013 Getting a Firm Grip on Weed Control

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

发表于:2019-01-12 / 阅读(71) / 评论(0)

2013年VOA慢速英语(五)月

VOA慢速英语2011--Inventor of Weed Eater Started a Revolut

Agriculture Report - Inventor of Weed Eater Started a Revolution 农业报道 - 巴拉斯开启割草机革命 This is the VOA Special English Agriculture Report. 这里是美国之音慢速英语农业报道。 George Ballas of Houston, Texas, lived

发表于:2019-01-12 / 阅读(63) / 评论(0)

2011年VOA慢速英语(七)月

美国国家公共电台 NPR Damage From Wayward Weedkiller Keeps Growing

RACHEL MARTIN, HOST: Farmers in parts of the South are fighting each other over a weed-killing chemical. Some are using it in combination with a new generation of genetically engineered crops. Others are angry because it's blowing in the wind and dam

发表于:2019-01-16 / 阅读(51) / 评论(0)

2017年NPR美国国家公共电台7月

2016年CRI Imported Zika Cases in China Rise to Five

The two new cases involve a 38-year-old man and his eight-year-old son from Yiwu City in Zhejiang Province. Xiong Huang with the National Health and Family Planning Commission has an update on all of the patients. Currently, a Zika patient in Jiangxi

发表于:2019-02-21 / 阅读(63) / 评论(0)

2016CRI中国国际广播电台

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as dark as a stack of black cats

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