The iPhone Air is a technical and design marvel that asks: how much are you willing to give up for a lightweight and ultra-slender profile?
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.
。业内人士推荐51吃瓜作为进阶阅读
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Not the day you're after? Here's the solution to yesterday's Connections.