A diphthong is a combination of two vowels which creates one vowel sound.

双元音是两个元音的组合，产生一个元音。

Restart their voice because they feel like linking two vowel sounds is too unclear.

重新开始，因为他们觉得连两个元音太不清楚了。

So it's almost like a vowel sound.

所以它（help中he的部分）几乎就像一个元音(/e/)。

Note that in American English, they say data, so the vowel sound is different.

请注在美式英语里他们的是data，元音不同。

" I" is a vowel sound, so it's " thee Irish Sea, the Irish Sea" .

“I”是元音，所以是“thee Irish Sea, the Irish Sea”。

That's how I like to compare vowel sounds.

我喜欢用样的方式比较元音。

Any vowel sound we can use this schwa sound.

任何元音都可以个弱央元音。

It's the most commonly used vowel sound in British English.

它是英式英语中最常用的元音。

In " can't, " the vowel sound is never reduced.

在" can’t" 发音时，元音从来不弱。

Fantastic. Thanks enough, thank you. And now some long vowel sounds?

太棒了。非常感谢。那长元音呢？

It can be a vowel sound, a consonant sound, a whole syllable.

不发音的可以是元音，也可以是辅音或是整个音节。

Now here are some words which have this vowel sound.

里有一些含有个元音的单词。

But in terms of pronunciation, there are actually 25 vowel sounds.

但就发音而言，实际上有25个元音发音。

And this is one of the long vowel sounds.

是一个长元音。

This sound is a little different from all of the other vowel sounds.

个音和其它元音的发音不太一样。

Other vowel sounds have one mouth position, ee, for example.

其它元音只有一种口型，例如[i]。

Diphthongs are normally made up of two vowel sounds.

双元音通常由两个元音组。

So long vowel sounds and short vowel sounds are important in English.

所以长元音和短元音在英语中是很重要的。

It's a diphthong, it's a vowel sound that starts ahh and ends up ee.

是一个双元音，它是一个元音，以 ahh 开头，以 ee 结尾。

However, it's a vowel sound that's used in many grammar words like articles and prepositions.

然而，它却是很多语法词（比如冠词和介词）中的元音。