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

双音是两音的组合，产生一音。

A schwa is a really reduced vowel sound.

即弱化音。

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

重新开始读，们觉得连读两音太不清楚了。

So it's almost like a vowel sound.

所以它（help中he的部分）几乎就像一音(/e/)。

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

请注意在美式英语里们读的是data，音不同。

It's the 'i' as in 'sit' vowel sound.

就像‘sit’词中‘i’的发音。

That's how I like to compare vowel sounds.

我喜欢用样的方式比较音。

This one has a very difficult vowel sound which lots of people hate.

单词有一很多人都讨厌的很难发音的音。

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

在" can’t" 发音时，音从来不弱读。

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

不发音的可以是音，也可以是辅音或是整音节。

Now here are some words which have this vowel sound.

里有一些含有音的单词。

This is one of the long vowel sounds.

是一长音。

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

音和其它音的发音不太一样。

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

其它音只有一种口型，例如[i]。

Diphthongs are normally made up of two vowel sounds.

双音通常由两音组成。

Or you can also drag out the vowel sound in 'like' while you're thinking.

或者是在思考的时候，你们可以拉长 ‘like’ 里面的音。

So technically here I'm linking two vowel sounds together.

严格地说，我在将两辅音连起来。

So they should at least have the same vowel sound, right?

它们至少音应该相同，对吧？

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

是一双音，它是一音，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）中的音。