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writable: false means no code can reassign window.Audio to a different value. configurable: false means no code can even call Object.defineProperty again to change those settings. If fermaw’s initialisation code tried to restore the original Audio constructor (a perfectly sensible defensive move) the browser would either fail or throw a TypeError. The hook was permanent for the lifetime of the page.
，这一点在WPS官方版本下载中也有详细论述
Израиль нанес удар по Ирану09:28。业内人士推荐heLLoword翻译官方下载作为进阶阅读
Что думаешь? Оцени!。同城约会是该领域的重要参考
Мерц резко сменил риторику во время встречи в Китае09:25