The [ ？] sound. It's a vowel ， but it's a lot like the "r" consonant.
To make this vowel sound， the tongue fattens up and comes up a little
bit in the back. Ur. So ， the back of my tongue is touching the back
of my throat. Ur， ur. Because it has fattened itself up in the back，
so it can touch back there， what that means is that the front of the
tongue is not touching anything. It's just， ur ， hanging out in the
middle of my mouth. As you can see， the lips ， ur ， they do a lot like
they do on the vowel uh （pull） they come in a little bit and the lips
go out a little bit. Ur ： learn， brrr it's cold ！（It's not really.）

    Ur. Brrr， learn， person. [？] 音是一個元音，不過它和輔音r 的發音
有很多相似處。發此音時，舌根處攤平并略微抬起。Ur. 舌跟碰到喉嚨的后部。

    Ur，ur. 因為舌跟處放平了，所以它可以觸及喉嚨后部，也就是說舌頭的前
部不碰到任何東西，它只是停留在口腔中央。就像你所看到的，嘴唇的樣子和發
元音uh（pull中的[u] 音）時非常相近。嘴唇稍稍向中間聚攏并向外突起。Ur：
learn ，brrr it's cold！（其實并不冷呵呵）Ur. Brrr， learn， person.

    Sample words：

    brrr（表示冷顫或領悟）呵，哦

    person人

    Sample sentence ：

    It's her turn to learn a word.輪到她學個詞了。