Javascript Google translate API未翻译HTML标记中的某些单词

我正在使用google translate API，我注意到，当我翻译HTML时，它有时会丢失标记中的单词，并以英语返回原始单词，例如：

发送后：

 "<div>
   <span id=0>you</span> <span id=1>youth</span> <span id=2>young</span> <span id=3>your</span> 
   <span id=4>yourself</span> <span id=5>youtube</span> <span id=6>youngster</span> <span id=7>yours</span> <span id=8>youse</span> <span id=9>youthful</span>
</div>"

---

编辑：问题在于类型，我需要的是“text/html”

<div> 
<div> <span id = 0> אתה </span> <span id = 1> youth </span> <span id = 2> צעיר </ span> ...
</div>

  const request = {
    parent: translationClient.locationPath(projectId, location),
    contents: [textToTranslate],
    mimeType: "text/html", // mime types: text/plain, text/html
    sourceLanguageCode: "en-US",
    targetLanguageCode: "he"
  };

  const request = {
    parent: translationClient.locationPath(projectId, location),
    contents: [textToTranslate],
    mimeType: "text/html", // mime types: text/plain, text/html
    sourceLanguageCode: "en-US",
    targetLanguageCode: "he"
  };