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In this American English pronunciation video we're going to talk about the differences between vowels AH and UH.
在这段美英的发音视频中，我们将进讨论一下元音AH和UH的区别。
First, let's take a look at some photos comparing the mouth positions.
首先，让我们看一下比较口型的照片。
Here we have the AH and UH vowels in profile. You can see for the AH vowel that the jaw might drop a little bit more.
在此我们能看到元音AH和UH的轮廓。可以看到，发元音AH时，下颚可能会下垂一些。
Also, the tongue position has a little bit of tension in it. That's because the tongue is flattened a little bit.
而且，舌头有点紧绷感。这是因为舌头有点扁平。
In the UH vowel, the tongue is completely relaxed. Now you'll see the mouth from the front, alternating between the AH and the UH sounds.
发元音UH时，舌头是完全放松的。现在你可在AH和UH之间交替发声时从正面看到嘴型变化。
Watch the subtle change in jaw drop. And see if you can notice the subtle change in tongue position as well.
观察下颚的细微变化。看看你是否也能注意到舌头位置的细微变化。
AH, UH [3x].
AH, UH [3x].
So, for the AH sound, the jaw will drop a little bit more, and the tongue will push down a little bit in the back. But these differences are subtle.
所以，发AH这个音时，下颚要下垂一点，舌头要往下一点。但这些差异是细微的。
The placement of the voice also comes into play. Check out the video I made introducing the concept of placement.
发音的位置也起了作用。可以看看我做的介绍位置概念的视频。
For the AH vowel, AH, the sound is more here, AH. For the UH vowel, UH, it's more here. The differences are subtle. It's tough. Here are some minimal pairs.
对于AH元音，AH，发音主要在这里，AH。对于元音UH，UH，更多的是在这里。差别很细微。是有些困难。以下有几组差异细微的单词。
Fond, fund. Shot, shut. Lock, luck. Robber, rubber. Stock, stuck. Cop, cup.
Fond, fund. Shot, shut. Lock, luck. Robber, rubber. Stock, stuck. Cop, cup.
That's it, and thanks so much for using Rachel's English.
今天就讲到这，非常感谢你观看瑞秋英语。
Don't stop there. Have fun with my real-life English videos. Or get more comfortable with the IPA in this play list. Learn about the online courses I offer, or check out my latest video.
不要就此止步，观看我的实景生活英语视频吧。或者在这个播放列表中观看IPA节目。了解我提供的在线课程，或者查看我的最新视频。
