声音简介
2. Listen and say.
3. Listen number and say.
4. Listen and say. Then sing and do the actions.
5. Play the game. Point and say.
6. Do and say.
2. Listen and say.
3. Listen number and say.
4. Listen and say. Then sing and do the actions.
5. Play the game. Point and say.
6. Do and say.
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