The [i？] diphthong. I've seen some sources that leave this out altogether.
It's always followed by an R consonant， and these sources don't see the
schwa as really having its own sound， as in the ih-uh diphthong. And
I say ， I admit， I agree with that. I'm putting in here though， because
a lot of other sources use it as a separate diphthong ： ih to uh ——
schwa. Now， the first sound， ih. With many diphthongs ， I find that
the ih vowel， it's written as an open ih as in sit ， actually in the
practice of the diphthong takes on a different color. I find it to be
a lot closer to the ee as in she， though the tongue is not so far forward.
I would think of the first sound of this diphthong more as a relaxed ee
than as a pure ih as in sit. The second sound then is the schwa ， and
that sound is very quick as you are already moving into the R of the consonant
that follows. So in slow motion ， the sound， with the R ， as it is
always followed by the R， would be ： iiiiihhhhhh uuuuuhhhhhh rrrrrrr
： here.

    [i？] 是一个双元音，有些材料中认为这个音是[i] 和R 音的组合，当中的
[ ？] 音并不发声。但是还有很多材料中认为将它看做两个分开的元音：即[i]
和[ ？].

    对于第一个音[i] ，很多双元音中，[i] 这个元音写作短音，就像sit 中的
[i] ，但是真的念起来的时候并非如此，它更接近于she 中的[i：] ，虽然舌头
的位置不像发[i：] 时那么靠前。其实这里的这个[i] 音更像一个放松发出的[i
：] 而不是纯粹的sit 中的[i].第二个音便是[ ？] ，它出现得非常之快，刚发
出你就进入到后面的R 音了。如果我们用慢动作来念就是这样：iiiiihhhhhh uuuuuhhhhhh
rrrrrrr.

    Sample words：

    sheer 全然，十足

    steer 驾驶，掌舵

    near靠近

    Sample sentence ：

    I fear my career is near its end. 我感觉到自己的职业生涯就快结束了。