Two characters might have identical Unicode skeletons but render differently in specific fonts, or have different skeletons but render identically in a particular typeface. Detecting this requires rendering glyphs and comparing pixel output. No purely Unicode-data-based approach handles it, and UTS #39 does not attempt to.
tee() splits a stream into two branches. It seems straightforward, but the implementation requires buffering: if one branch is read faster than the other, the data must be held somewhere until the slower branch catches up.
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// Sync variants return boolean (true = accepted)
Labour MP Dawn Butler wrote to the BBC asking for an "urgent explanation" as to why the slur was broadcast despite the show being on a delay.
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Inside the situation room。业内人士推荐旺商聊官方下载作为进阶阅读
（摘编自《福建日报》，原题为《“手搓经济”，汇聚个体创新的微光》）