The A/D bits exist entirely for the operating system's benefit. The Accessed bit tells the OS which pages have been recently used, enabling page replacement algorithms to choose pages to evict when memory runs low. The Dirty bit tells the OS which pages have been modified and must be written back to disk before eviction; clean pages can simply be discarded and re-read from disk later.
而对于 Galaxy Buds 4 Pro 来说，除了以上的特征，Buds 4 Pro 改为了入耳式，还搭载了新升级的双路扬声器系统和双功放功能，呈现更通透均衡的高保真音质，两者均支持主动降噪。
。关于这个话题，heLLoword翻译官方下载提供了深入分析
793 Unicode characters look like Latin letters but aren’t (yet) in confusables.txt
async function* adapt(input) {