Tongue Twister - Jessica 白洁
http://www.unsv.com/material/Food-Fashion-Fun/2016/06/22/
# 用于课后练习
Schwa Sound 英音 口语 ETJ English
https://www.bilibili.com/video/av24311199/
Cup of tea 轻读“f” a pice of bread
规则一： R 结尾的字母上 <-- schwa
Better Teacher
What are you doing for Christmas?
规则二： 非重读音节上
Police = Puhlice
Sofa = Sofuh
About = Uhbout
Again = Uhgain
Problem = Problum
President = Presuhdent
Bottom = Bottum
Album = Albuhm
Syringe = Suhringe
重读 /i:/ eg. Sky
yy <
非重读 /i/ eg. baby
and 放中间不动读“d”
# 正课内容
