课程的螺旋式设计确保持续复习以稳固提高自然发音技能。

The spiral design of the program ensures constant review and steady build-up of the phonics skills.

youdao

课程的螺旋式设计确保持续复习以稳固提高自然发音技能。

The spiral design of the program ensures constant review and steady build-up of the phonics skills.

youdao