The [u] sound. This is very related to the [？] as in butter， but
there's a difference in the tongue position ， and a difference in the
lip position. What the tongue does， is it comes more forward than it
does for the uh {butter} sound， and it also raises a little bit in the
back. But it doesn't touch the roof of the mouth. Uh， uh. So it comes
up a little bit in the back and then forward. The lips， as you can see
，uh ， they come out a little bit ， and the corners come in just a little
bit. Uh {butter}， uh {full}， uh {butter}， uh {full}. Uh， butter —
— uh ， should ， could， full.

    [u] 的發(fā)音與butter一詞中[ ？] 的發(fā)音非常相近，但是它們在舌頭和嘴唇
位置上有所區(qū)別。在發(fā)[u] 這個音時，舌頭的位置比發(fā)[ ？] 時更靠前。同時舌
根處略微抬起，但是不觸及上顎。[u] ， [u]. 所以說舌跟略微抬起，然后向前
伸展。至于唇形，正如你所見，[u] ，嘴唇稍稍往外張，嘴角也略微往中間收。

    [ ？] ，[u] ，[ ？] ，[u]. [？] ， butter —— [u]， should ， could，
full.

    Sample words：

    full

    充滿的

    could

    能

    Sample sentence ：

    You should look at that woman's foot.

    你應該看看那位女士的腳