조회 수 101 추천 수 0 2015.01.09 05:09:13
http://www.engvid.com/ Are you sure? Did you know that "sure" can mean different things? You can use this word to express agreement OR disbelief. Watch this ...
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원문출처 : http://www.youtube.com/watch?v=SbN7-4zcIb0&feature=youtube_gdata