pronunciation practice

pronunciation practice: SayAnyWords is a pronunciation guide focusing on How to Say, How to Pronounce any words.
普通话频道：
https://www.youtube.com/channel/UCa65qO1o2kwQ7h0ZlufOEtw
英语频道：
https://www.youtube.com/channel/UC4vaAzWaUVxfaBXHj3a2ZHw
上海话频道：...