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.
Galaxy Buds 4 与 Galaxy Buds 4 Pro 售价分别为 1399 元与 1899 元。
，详情可参考搜狗输入法2026
Kindle (16GB) + Kindle Unlimited (3 Months)
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