帖子在英音吧发过，结果十几个小时的惨案，所以。。

我先看书去了，，

。。。。

没人

哪里不一样？

你怎么知道别人的舌头位置，发s都是嘴要往两边咧开点，舌头介于汉语平翘舌之间，而且别人视频发音都是连续动作，你截个别人正准备发音的图就开始放屁，当然没有人鸟你

有学习音标的软件么

/s/ & /z/: The soft palate being raised and the nasal resonator shut off, the blade (or the tip and blade) of the tongue makes a light contact with the upper alveolar ridge and the side rims of the tongue make a close contact with the upper side teeth. The airstream escapes by means of a narrow groove in the centre of the tongue and causes friction between the tongue and the alveolar ridge. There is very little opening between the teeth. The lip position will depend upon the adjacent vowel.

看了好多教学，好多种版本