单词：Brinell ball test
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TEHRAN, Nov. 21 (Xinhua) -- Commander of Iran's Islamic Revolution Guards Corps Major General Mohammad-Ali Jafari said Wednesday Iran has provided the Palestinian resistance with the technology of mass production of Fajr-5 missiles, semi-official Far
发表于:2019-01-07 / 阅读(44) / 评论(0)
英语新闻
英语新闻
HARI SREENIVASAN:It's been three years since a case of polio has been reported in India, a milestone that means the country can be officially declared polio-free. NewsHour special correspondent Fred de Sam Lazaro updates a report he filed on how this
发表于:2019-01-27 / 阅读(48) / 评论(0)
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PBS访谈健康系列