单词：perlid
石蝇
n. Any insect of the genus Perla, or family Perlidae. See
Stone fly, under Stone.
Stone fly, under Stone.
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North Korean leader Kim Jong Il is still nowhere to be seen, more than a week after South Korean intelligence officials revealed the belief he is recovering from a stroke. As VOA's Kurt Achin reports from Seoul, South Korean officials are trying to
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