Firstly, to pronounce these two sounds, the back part of the tongue must be raised and pressed against the *soft palate*. This action takes place deep in the mouth, so it's not something we can see directly. In fact, most people don't even know exactly how they produce these sounds, nor can anyone recall how they learned to make them as children.
Moreover, much like the <span class="pho">t/d</span> sounds, <span class="pho">k/g</span> also naturally carries a slight vowel sound. Once again, it's not <span class="pho">ə</span> but <span class="pho">ɤ</span><span class="speak-word-inline" data-audio-other="/audios/Close-mid_back_unrounded_vowel.ogg.mp3"></span>, where the air is flowing through without any vocal cord vibration. Pay close attention to the pronunciation of class: <span class="pho alt">klæs</span><span class="speak-word-inline" data-audio-us-male="/audios/class-us-male.mp3" data-audio-us-female="/audios/class-us-female.mp3"></span>. The sound ɤ is subtle yet noticeable.
Also, when a <span class="pho">k</span> comes between two vowels, it can undergo a similar voicing change as a <span class="pho">t</span> between two vowels, making it sound closer to a <span class="pho">g</span>. For example, in *look out*<span class="speak-word-inline" data-audio-us-male="/audios/lookout-us-male.mp3" data-audio-us-female="/audios/lookout-us-female.mp3"></span> and *seek out*<span class="speak-word-inline" data-audio-us-male="/audios/seekout-us-male.mp3" data-audio-us-female="/audios/seekout-us-female.mp3"></span>, *woke up*<span class="speak-word-inline" data-audio-us-male="/audios/wokeup-us-male.mp3" data-audio-us-female="/audios/wokeup-us-female.mp3"></span>.
## 拼写(Spellings)
@@ -46,7 +74,7 @@ Also, when a <span class="pho">k</span> comes between two vowels, it can undergo
* go <span class="pho alt">ɡoʊ</span> <span class="speak-word-inline" data-audio-us-male="/audios/go-us-male.mp3" data-audio-us-female="/audios/go-us-female.mp3"></span>
* logo <span class="pho alt">ˈloʊɡoʊ</span> <span class="speak-word-inline" data-audio-us-male="/audios/logo-us-male.mp3" data-audio-us-female="/audios/logo-us-female.mp3"></span>
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