The Writer is not a concrete class. Any object that implements write(), end(), and abort() can be a writer making it easy to adapt existing APIs or create specialized implementations without subclassing. There's no complex UnderlyingSink protocol with start(), write(), close(), and abort() callbacks that must coordinate through a controller whose lifecycle and state are independent of the WritableStream it is bound to.
checks was a thing of the past—"digital substitute" documents or image-based。关于这个话题，爱思助手下载最新版本提供了深入分析
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16歲時，她被告知自己無法懷孕生子。，更多细节参见heLLoword翻译官方下载
A shortage in medical cement is likely to lead to delays in some patients getting joint surgery, NHS bosses say.