So that is an unvoiced sound.

所那是个清。

If the first one is unvoiced, the second one will sou nd unvoiced, no matter what you do.

如果第一个辅是清，无论怎样，第二个也会是清。

There's the voiced TH and the unvoiced TH.

有浊 TH 和清 TH。

It happens in the past tense when verbs end with an unvoiced sound.

这发生在过去词清的情况。

A voiced consonant at the end of a word will be slightly unvoiced.

单词末的浊辅会稍微清。

But some sounds are not voiced.

但是有些因素是不用发出声的——清。

So let's go straight into it and talk about the differences between the unvoiced and the voiced.

那我们就直奔主题，来谈谈清和浊的区别。

Tongue between the teeth, breathe the air around, use your voice for voiced, don't use your voice for unvoiced.

舌头放在牙齿之间，吐气，发浊，不发清。

Now when the -ed suffix appears after a voiceless consonant.

现在我们来看看“ed”后缀出现在一个清辅之后的情况。

This is really important to practice so that you can understand the difference between voiced and unvoiced.

这样练习非常重要，这样你才能理解浊和清之间的区别。

Either two voiceless consonants or two voiced consonants.

两个清或两个浊辅。

So let's start with the unvoiced, " thank" , " thank" , " thunder" , " thunder" .

让我们从清开始，thank，thank，thunder，thunder。

Practice going from unvoiced to voiced and back if you want.

如果你愿意，可练习从清到浊再重复。

When the word ends with a voiceless consonant, then we add an S.

当单词清辅时，我们的发是/s/。

Now as I mentioned, there are two 'th' sounds, a voiced sound and an unvoiced sound.

正如我之前所说，“th”有两种发，一种是浊，一种是清。

If it's a voiceless consonant, then it loses its voicing quality, and it turns into a 't'.

如果它是一个清辅，那么它就失去了质，变成了一个“t”。

So when the -ed suffix appears after a voiceless consonant, then it turns into a 't.'

所，当“ed”后缀出现在一个清辅之后，它就变成了一个“t”。

But first, let's try some sentences with both the voiced and the unvoiced.

但是首先，让我们尝试一些带有浊和清的句子。

So the unvoiced TH, of course, is when we do not make a sound with our vocal cords.

当然，清 TH 是指我们不用声带发出声。

It's got that unvoiced TH at the beginning.

一开始就是清。