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1.網球(反手削球)

By: t2210, Views: 315

網球(反手削球)

2.網球(開放式和關閉式步法)

By: t2210, Views: 316

網球(開放式和關閉式步法)

3.網球(基礎發球)

By: t2210, Views: 327

網球(基礎發球)

4.網球(單手反拍)

By: t2210, Views: 295

網球(單手反拍)

F6_等比數列無限項之和求未知數

By: t2209, Views: 388

F6_等比數列無限項之和求未知數

English introduction

By: t2214, Views: 526

In this video you can practice your listening skills.

Phonics /sh/ sound

By: t2214, Views: 478

Phonics: sound /sh/. Pronunciation practice.

Phonics /ch/ sound

By: t2214, Views: 567

/ch/ sound pronunciation practice

1.被動式伸展

By: t1104, Views: 528

被動式伸展