So that is an unvoiced sound.

所以那是个清音。

There is one extra letter that is unvoiced down the bottom.

还有一个不音的辅音最后一行。

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

这过去式中动词以清音结尾的情况。

Unvoiced consonant sounds are made by air pushing through your mouth.

清辅音是空气通过你的嘴巴进行音的。

With an unvoiced TH, the tongue tip does have to come through the teeth for this. Method.

对于无声的 TH 来说，舌尖必须穿过牙齿才能做到这一点。

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

如我之前所说，“th”有两种音，一种是浊音，一种是清音。

And a 'th' at the end of a word is usually unvoiced.

单词末尾的“th”音一般也都是清辅音。

So a 'th' at the beginning of content words is usually an unvoiced 'th' sound.

实义词前的“th”通常都是清辅音。

So the 'th' at the start of content words is usually unvoiced.

所以实义词之前的“th”一般都是清辅音。

So this is the unvoiced 'th' sound.

这就是清辅音“th”。

So when should you use the voiced or the unvoiced sound?

那什么时候该使用清辅音，什么时候该使用浊辅音呢？

Now if there is a 'th' in the middle of a word, before a consonant, it's usually unvoiced.

如果单词的中间、辅音之前有一个“th”的话，通常都是清辅音。

So those are the three possibilities: “d” after a voiced sound, t after an unvoiced sound and “id” after “t” or “d”.

（动词的音标以）浊辅音（或元音）结尾时，ed念d；清辅音结尾时，ed念t；动词音标以t和d结尾时，念id。

Now they're all unvoiced sounds and so they're made by pushing air through your mouth.

它们都是清辅音，所以它们都是通过空气流过口腔出的。

Mainly as a girl, I learned, as a girl, that anger is an emotion better left entirely unvoiced.

主要是作为一个女孩，我了解到， 作为一个女孩，愤怒是一种情感，最好将它置之不顾。

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

如果第一个辅音是清音，无论怎样，第二个也会是清音。

And if a verb ends with an unvoiced sound like “p” or “k” or “f” we make the past with another unvoiced sound “t” so we say “hoped, looked, stuffed”.

加入一个动词（的音节）以清辅音“p” 或者“k” 或者“f”结尾，那它们的过去式ed就年做t（清辅音），如，“hoped, looked, stuffed”。

The top row are unvoiced consonant sounds, which means that the sound is made by air moving from the back of your mouth, through and out your lips.

第一行是不音的辅音，意思是用从嘴中吐出的气流穿过嘴唇时的音。

The unvoiced TH sound and if that wasn't hard enough already, this creates some crazy consonant clusters at the ends of some of these words.

清辅音TH ，如果那还不够难的话，这会这些单词的结尾创造一些非常疯狂的辅音丛。