[ə], the schwaa sound. A lot of languages have a schwa. How do we make it? It's like I wanted to make a noise without moving anything at all. Uh, uh. As you can see, the lips are barely apart, the teeth are barely apart, the tongue is forward and relaxed, the cheek and lips are completely relaxed. Uh.

[ə]是中元音（发音时，舌位、唇形、开口度始终不变的元音叫中元音），很多语言中都有中元音。我们该怎么发这个音呢？这就好像我要在没有任何动作的情况下要发出声音一样。Uh, uh. 正如你所看到的，嘴唇和牙齿就这么张开，舌头在前部松弛着，脸颊和嘴唇都彻底放轻松。Uh.