VOA News 조회 수 459 추천 수 0 2015.01.09 20:57:18
Underwater tracking devices were put to use more frequently than usual in 2014, looking for downed airplanes in the sea. Two of the aircraft are still missing — Malaysia Airlines Flight 370...
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원문출처 : http://www.youtube.com/watch?v=SEjp2Dp1SDo&feature=youtube_gdata