发音
双唇微开,稍向前突出,略成长方形

单词
usually usual visual
fusion illusion inclusion
precision revision casual
television vision division
genre massage explosion
disclosure enclosure leisure
decision occasion provision
exposure measure pleasure
persuasion treasure invasion
conclusion confusion decision

句子
I usually watch television.
It is my pleasure to help.
Let’s come to the conclusion.
The visual effect is amazing.
It is hard to make decision.

辨音
[ʒ] [ʃ]
equation location
measure pressure
vision mission

[ʒ] [dʒ]
pleasure pledger
leisure ledger