求翻译：但是我们只要参考以下以上的第二种和第三种分类：两个音虽然控制气流的部位都是舌尖和齿龈，但是前者气流从鼻腔中通过，后者气流却是从舌两侧通过。所以我们在感冒的时后鼻音[n]一般发不出来，而舌侧音[l]的发音却毫无障碍。是什么意思？

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But below we so long as refers above second kind of and the third kind of classification: Although two sounds the control air current spot all is the tip of tongue and the gums, but the former air current passes from the nasal cavity, the latter air current is actually passes from the tongue both si

But we just refer to the following above the second and third categories: two tone control air part is tongue and gums, but flow through from the nasal cavity, the latter flow is from both sides of the tongue pass. So when we have a cold after the nasal [n] does not come out, and lingual tones [l] p

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