Fully pronounced, the word has the voiced TH, which I know is a tricky sound, the EH as in BED vowel, and the M consonant.

完全念出来，这个单字有浊音TH ，知道一个难搞的单字。如「bed」 母音的EH ，还有M子音。

So, in fact, all of these contain them what's called a dark L.

实际上，单词中的这些 L 们说的浊音 L。

Let's start by thinking about the difference between two kinds of sound: some sounds are what we call voiced – if you pronounce “m” or “l” or “v” or “d” you make a sound in your throat.

有一类们称之为“发声”——浊音，例如，你在念“m” 或者“l” 或者“v” 或者“d”的候，你的喉咙会发出声音。

Let's see some other voiced consonants and examples.

让们看一些其他的浊音和例子。

But there is a little technique I'm going to teach you later on in this lesson to make it a little bit easier to pronounce the voiced TH when you're speaking fast.

但在这节课的后面，将教你一个小技巧，让你在快速说容易发音浊音 TH。

He invoked the word in the 1950s mostly in homage to linguists like Roman Jakobson, who had posited binary opposites (voiced and voiceless elements) as the building blocks of language.

他在1950年代使用这个词的候，主要为了向罗曼·雅各布森（认为语言由清音和浊音这两种二元对立的元素所构成）一样的语言家致敬。

Another way to detect a lobar pneumonia, though, is to look for dullness to percussion which suggests that there's a lung consolidation.

另一种检测大叶性肺炎的方法叩诊浊音，这表明有肺实变。

An interesting thing about liaisons is that so much of it has to do with whether a consonant is voiced or not.

关于连音的一个有趣现象它与一个辅音否浊音有很大关系。

It's a voiced sound so you should get the tickle on your tongue, that vibration when you make this sound.

这一个浊音，所以当你发这个音，舌头上应该会有痒痒的感觉，有一种振动的感觉。

But consonant sounds of American English can differ from each other in another very important way: voicing.

发浊音。

So if I add a Z sound, it'll turn the previous consonant to a voiced consonant.

所以如果加一个/z/音，它会把前面的辅音变成一个浊音。

Voicing is about whether there is a vibration in the vocal chords.

发浊音指的声带否震动。

Now we are going to look at the voiced TH sound.

现在们来看看浊音 TH。

If the first consonant is voiced, the next one will be as well.

如果第一个辅音浊音，那么下一个也会浊音。

So here's the thing, English doesn't like it when there are two consonants one after the other when one is voiceless and the other one is voiced.

事情这样的，英语不喜欢有两个辅音连在一起，一个清音，一个浊音。

But bear in mind that if the L comes before a consonant like in 'melt', 'felt', 'miles', and 'files', then it should be dark.

但要记住，如果 L 出现在一个辅音之前，例如 melt，felt，miles，还有 files，那么它浊音的。

We call that voicing and if you put your hand on your throat when you say those sounds, you can feel vibrations.

们把这一类发音称之为——浊音（会发声），念这些音的候，如果你把手放在喉咙，可以感觉到振动的。

Classically, a pleural effusion will cause decreased breath sounds, dullness to percussion, which is tapping, on the back, and decreased tactile fremitus.

典型的胸腔积液会导致呼吸音减少，背部叩诊浊音，触觉语颤减弱。

It's a bit uncommon to have the voiced TH sound at the end of words but it does happen.

末尾发浊音 TH 的词不常见，但确实会有。

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

正如之前所说，“th”有两种发音，一种浊音，一种清音。