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我正在使用articulate.js將語句添加到網站的語音中。代碼如下：speack函數即表達式不工作的js
<body>
<div class="articulate-area">
<button onclick="speak('article')">Speak All</button>
<button onclick="speak('div.intro')">Speak Intro</button>
<button onclick="speak('div.speech')">Speak Speech</button>
<button onclick="pause()">Pause</button>
<button onclick="resume()">Resume</button>
</div>
<article>
<div class="intro">
<h1>The Gettysburg Address</h1>
<h2>Delivered by Abraham Lincoln on November 19, 1863</h2>
<h3>Beginning with the iconic phrase <q>Four score and seven years ago,</q> this speech is generally regarded as the most famous in American history.</h3>
</div>
<div class="speech">
<img src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/915932/lincoln.jpg" alt="A Portrait of the Sixteenth President">
<p>Four score and seven years ago our fathers brought forth on this continent, a new nation, conceived in Liberty, and dedicated to the proposition that all men are created equal.</p>
<p>Now we are engaged in a great civil war, testing whether that nation, or any nation so conceived and so dedicated, can long endure. We are met on a great battle-field of that war. We have come to dedicate a portion of that field, as a final resting place for those who here gave their lives that that nation might live. It is altogether fitting and proper that we should do this.</p>
</div>
</article>
<body>
<script>
function speak(obj) {
$(obj).articulate('speak');
};
function pause() {
$().articulate('pause');
};
function resume() {
$().articulate('resume');
};
</script>
以上是TTS添加到不正常的網頁的代碼，我是否需要任何其他腳本添加到網頁？官方的articulate.js網站表示，它與Chrome兼容。但我沒有得到語音輸出。