This has a voiceless TH at the end.

这音末尾有一不音的 TH 音。

I started this to provide a voice to the voiceless.

我开始这样做是为了给那些没有权的人提供一的机会。

Now, this video focuses on voiceless consonants.

这段视频的重点是清辅音。

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

当单词以清音辅音结尾时，我们的音是/s/。

Voiceless people realized that they had a voice, and it was powerful and eloquent.

欲无处诉的人识到自己有话语权了，而且还能声势浩大、振振有词。

Mr Snyder's book straightens the record in favour of the voiceless and forgotten.

Snyder的大作理清了曲直，只为那些已无法出声或已被忘却的冤魂。

Hey, did you bring that — Sweet tears, a voiceless consonant.

嘿，了——Sweet tears，/teə(r)/是清辅音吗？

But this video will focus on the voiceless consonants.

但这段视频的重点是清辅音。

Either two voiceless consonants or two voiced consonants.

两清音或两浊辅音。

The vocal cords are vibrating just as the S is voiceless and the Z is voiced.

声在振动，就像/s/是不声的，/z/是声的。

And there's so many who are voiceless and there's so many who are incapable of action.

很多人都没有权，他们没有行动能力。

In English, we say the voiceless sound with a puff of air.

在英语中，我们清辅音的时候会有一股气流。

Now, there are two types of THs: one that is voiced and one that is voiceless.

TH 有两种音：一种是浊辅音，一种是清辅音。

Scientists also used to think that turtles were voiceless and mother turtles abandoned their nests after laying their eggs.

科学家以前也认为龟是不会声的，而且龟妈妈会在孵化了蛋以后弃巢。

You pass messages, and talk about the suffering of the people, and be the voice of the voiceless, basically.

可以通过hip-hop传达信息，诉说人民的疾苦，为那些有苦无处说的人们传递声音。

So try this: find me a tongue sound, a lingual, that's clear, meaning voiceless, and has the first tone.

帮我找一声母属于「舌音」， 也就是（现代语学的）舌冠音，「清」的，也就是清辅音，属于第一种声调的字。

Listen carefully to hear the difference. For each example I shall say the word with the voiceless sound first.

仔细听其中的区别。每一组例子我会先读有清辅音的单词。

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

现在我们看看“ed”后缀出现在一清音辅音之后的情况。

With the voiceless sound there is a big puff of air. You can feel it with your hands.

读清辅音的时候有一股气流。可以用手感受下。

The Pakistani teenage campaigner for girls' education Malala Yousafzai said her award was for the voiceless children of the world.

支持女孩教育权利的巴基斯坦儿童活动家马拉拉·优素福称她的奖品要送给全世界不能为权利出呼声的孩子们。