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In this American English pronunciation video, we're going to compare the vowels EH and AA.
在本期的视频中，我们将比较元音EH和AA。
First, let's start by comparing profile pictures of the two sounds.
我们先从比较这两个声音的侧面图示开始。
Here you'll see the EH as in BED vowel on the left,
你会看到左边BED中的EH元音，
and the AA as in BAT vowel on the right.
右边的BAT中的AA元音。
For the AA vowel, you can see that it's the back part of the tongue
对于AA元音，可以看到舌头的后部
that raises up towards the roof of the mouth.
向上翘到嘴的顶部。
For the EH vowel, it's the mid/front part of the tongue that is stretching up.
对于EH元音，是舌头的中部/前部向上伸展。
Also, for the AA, you can see that the jaw drops just a little bit more.
另外，对于AA，可以看到下巴下降了多一点。
So, for the AA vowel, the tongue is raising here.
所以，对于AA元音，舌头在这里抬高。
AA. And for the EH vowel, the tongue is raising more here. EH.
AA音，而对于EH元音来说，舌头在这里升高得更多，EH。
So, here for the AA and here for the EH.
所以，这里是AA，这里是EH。
AA, EH. When comparing the two sounds in isolation,
AA、EH，当孤立地比较这两个发音时，
you'll also notice that the jaw does not drop as much for the EH sound,
你也会注意到，对于EH音来说，
as the front part of the tongue is raising towards the roof of the mouth. AA, EH.
下巴下降的幅度并没有那么大，因为舌头的前部朝着嘴的顶部升起。AA、EH。
There's a difference in the lip position as well.
嘴唇的位置也有区别。
For the AA vowel, you may find that you get a more accurate sound if you lift a little bit here with the top lip. AA, AA.
对于AA元音，你可能会发现，如果你用上唇稍微抬起一点，发音会更准确。AA，AA。
Whereas, for the EH sound, the lips remain very relaxed and neutral, EH, EH.
然而，对于EH音，嘴唇保持非常放松，EH，EH。
Now we'll see the two alternating up close. AA, EH, AA, EH.
现在我们近距离看这两个音交替，AA、EH、AA、EH。
To close, a few minimal pairs. Bat, bet.
最后，几个小配对，Bat、bet。
Capped, kept. Jam, gem. Tack, tech. Rack, wreck.
Capped、kept；Jam、gem；Tack、tech；Rack、wreck。
I hope this video has made the difference between these two sounds a little more clear.
我希望这段视频能把这两个发音之间的区别讲得更清晰一点。
That's it, and thanks so much for using Rachel's English.
这期节目就到这里了，非常感谢你收看《瑞秋纯正美式发音视频》。
