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Day 19: take (someone) up on (something) Index: 0:12 Introduction. Listen to the phrasal verb in context. 0:36 Identify the meaning. 1:04 Explanation. Study its meaning and use. 1:49 Stress... |
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JenniferESL
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Time: 09:01 | More in Education |
원문출처 : http://www.youtube.com/watch?v=VpGiTn1abJE&feature=youtube_gdata