Unit 1 It's Time to Play the Violin - 课文1讲解
1554
Unit 1 It's Time to Play the Violin - 课文2讲解
920
Unit 2 I'm Healthy - 课文1讲解
934
Unit 2 I'm Healthy - 课文2讲解
667
Unit 3 Care for the Earth - 课文1讲解
855
Unit 3 Care for the Earth - 课文2讲解
709
Unit 4 Let's Go on a Picnic - 课文1讲解
703
Unit 4 Let's Go on a Picnic - 课文2讲解
967
Unit 5 It Was Here Just Now - 课文1讲解
1131
Unit 5 It Was Here Just Now - 课文2讲解
851
Unit 6 What Did You Do Last Weekend - 课文1讲解
1010
Unit 6 What Did You Do Last Weekend - 课文2讲解
889
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