add a script to replace

1000-hours/sounds-of-american-english/2.2.5-fv.md

@@ -1,19 +1,19 @@
-# 2.2.5 `f/v`
+# 2.2.5 <span class="pho">f/v</span>
 
-与 `k/g` 不一样，`f/v` 的发声重点是可以看到的：下嘴唇略微收回，上牙贴在下嘴唇上，而后开始发音。
+与 <span class="pho">k/g</span> 不一样，<span class="pho">f/v</span> 的发声重点是可以看到的：下嘴唇略微收回，上牙贴在下嘴唇上，而后开始发音。
 
-Unlike `k/g`, the articulation of `f/v` is actually visible: the *lower lip* retracts slightly, and the *upper teeth* rest on the lower lip before beginning to sound.
+Unlike <span class="pho">k/g</span>, the articulation of <span class="pho">f/v</span> is actually visible: the *lower lip* retracts slightly, and the *upper teeth* rest on the lower lip before beginning to sound.
 
 ![articulator-tongue-tip-fv](/images/articulator-tongue-tip-fv.svg)
 
-韩语中没有这两个音，所以，他们会不由自主地用 `p` 替代 `f`，用 `b` 替代 `v`；所以，我们经常会听到韩国人把 *photo* 说成 `/ˈpoʊˌtoʊ/`<span class="speak-word-inline" data-audio-other="/audios/us/photo-ko-kr.mp3"></span>，把 *video* 说成 `/ˈbɪdioʊ/`<span class="speak-word-inline" data-audio-other="/audios/us/video-ko-kr.mp3"></span>……
+韩语中没有这两个音，所以，他们会不由自主地用 <span class="pho">p</span> 替代 <span class="pho">f</span>，用 <span class="pho">b</span> 替代 <span class="pho">v</span>；所以，我们经常会听到韩国人把 *photo* 说成 <span class="pho alt">ˈpoʊˌtoʊ</span><span class="speak-word-inline" data-audio-other="/audios/us/photo-ko-kr.mp3"></span>，把 *video* 说成 <span class="pho alt">ˈbɪdioʊ</span><span class="speak-word-inline" data-audio-other="/audios/us/video-ko-kr.mp3"></span>……
 
-The Korean language lacks these two sounds, so Koreans will instinctively replace `f` with `p` and `v` with `b`. As a result, you often hear Koreans pronouncing *video* as `/ˈpoʊˌtoʊ/`<span class="speak-word-inline" data-audio-other="/audios/us/photo-ko-kr.mp3"></span> and *video* as `/ˈbɪdioʊ/`<span class="speak-word-inline" data-audio-other="/audios/us/video-ko-kr.mp3"></span>...
+The Korean language lacks these two sounds, so Koreans will instinctively replace <span class="pho">f</span> with <span class="pho">p</span> and <span class="pho">v</span> with <span class="pho">b</span>. As a result, you often hear Koreans pronouncing *video* as <span class="pho alt">ˈpoʊˌtoʊ</span><span class="speak-word-inline" data-audio-other="/audios/us/photo-ko-kr.mp3"></span> and *video* as <span class="pho alt">ˈbɪdioʊ</span><span class="speak-word-inline" data-audio-other="/audios/us/video-ko-kr.mp3"></span>...
 
-中国南方有些方言里也没有 `f`，所以，他们可能会用 `hw` 替代 `f`，比如，把 *fight* 读成 `/hwaɪt/`；中文的普通话里没有 `v`，所以，中国人经常把用 `w` 替换 `v`，比如，把 *very* 读成 `/ˈwɛri/`<span class="speak-word-inline" data-audio-other="/audios/us/very-cn-zh.mp3"></span>……
+中国南方有些方言里也没有 <span class="pho">f</span>，所以，他们可能会用 <span class="pho">hw</span> 替代 <span class="pho">f</span>，比如，把 *fight* 读成 <span class="pho alt">hwaɪt</span>；中文的普通话里没有 <span class="pho">v</span>，所以，中国人经常把用 <span class="pho">w</span> 替换 <span class="pho">v</span>，比如，把 *very* 读成 <span class="pho alt">ˈwɛri</span><span class="speak-word-inline" data-audio-other="/audios/us/very-cn-zh.mp3"></span>……
 
-Some dialects in southern China also lack the `f` sound, so speakers might substitute `f` with `hw`. For instance, they might pronounce `fight` as `/hwaɪt/`. Mandarin Chinese doesn't have a `v` sound, so Chinese speakers often replace `v` with `w`, like pronouncing `very` as `/ˈwɛri/`<span class="speak-word-inline" data-audio-other="/audios/us/very-cn-zh.mp3"></span>...
+Some dialects in southern China also lack the <span class="pho">f</span> sound, so speakers might substitute <span class="pho">f</span> with <span class="pho">hw</span>. For instance, they might pronounce <span class="pho">fight</span> as <span class="pho alt">hwaɪt</span>. Mandarin Chinese doesn't have a <span class="pho">v</span> sound, so Chinese speakers often replace <span class="pho">v</span> with <span class="pho">w</span>, like pronouncing <span class="pho">very</span> as <span class="pho alt">ˈwɛri</span><span class="speak-word-inline" data-audio-other="/audios/us/very-cn-zh.mp3"></span>...
 
-另外需要注意的是，与 `p/b`、`t/d`、`k/g` 不一样，`f/v` 在发声的时候**不带**任何轻微的元音音色。
+另外需要注意的是，与 <span class="pho">p/b</span>、<span class="pho">t/d</span>、<span class="pho">k/g</span> 不一样，<span class="pho">f/v</span> 在发声的时候**不带**任何轻微的元音音色。
 
-Another thing to note is that, unlike `p/b`, `t/d`, and `k/g`, `f/v` are pronounced *without* any slight vowel qualities.
+Another thing to note is that, unlike <span class="pho">p/b</span>, <span class="pho">t/d</span>, and <span class="pho">k/g</span>, <span class="pho">f/v</span> are pronounced *without* any slight vowel qualities.