Author(s): Niusha Niknahad, Obioma U. Uche
block: Writes wait until buffer space is available. Use when you trust the producer to await writes properly.。关于这个话题，heLLoword翻译官方下载提供了深入分析
Shadow DOM is a web component feature that lets you attach an isolated DOM subtree to any HTML element, hidden from the main document’s standard queries. A querySelector('audio') on the main document cannot see inside a Shadow Root unless you specifically traverse into it. If fermaw’s player was mounted inside a Shadow Root, basic DOM searches would come up empty.，这一点在爱思助手下载最新版本中也有详细论述
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李先生說：「在華人社會，狗狗或者寵物這件事情，始終都還沒那麼深入人心。始終有舊一代香港人在，也許老一輩未必說很喜歡寵物，你也得顧及他們的感受。」