Essentials 精听训练
「Essentials」共 30 篇精听素材（合计约 20 分钟）。每篇逐句切分，可单句循环精听、逐句听写并自动批改，错词自动进入生词本按遗忘曲线复习。
- Pack3·M2·L1
- Pack3·M2·A1
- Pack3·M2·C2
- Pack3·M2·C1
- Pack3·M2·Choose the best response
- Pack3·M1·L1
- Pack3·M1·A1
- Pack3·M1·C2
- Pack3·M1·C1
- Pack3·M1·Choose the best response
- Pack2·M2·L1
- Pack2·M2·A1
- Pack2·M2·C2
- Pack2·M2·C1
- Pack2·M2·Choose the best response
- Pack2·M1·L1
- Pack2·M1·A1
- Pack2·M1·C2
- Pack2·M1·C1
- Pack2·M1·Choose the best response
- Pack1·M2·L1
- Pack1·M2·A1
- Pack1·M2·C2
- Pack1·M2·C1
- Pack1·M2·Choose the best response
- Pack1·M1·L1
- Pack1·M1·A1
- Pack1·M1·C2
- Pack1·M1·C1
- Pack1·M1·Choose the best response