like the https://translatewiki.net/wiki/MediaWiki:Timedmedia-webm-videos/en, it are easy to add quantifiers (Chinese is "个") when localization, while the
https://translatewiki.net/wiki/MediaWiki:Timedmedia-derivative-desc-360p.ogv/en is not easy (occurrence location difficult to ensure, and space is not controllable).
For all quantity + space string in https://en.wikipedia.org/wiki/Special:TimedMediaHandler.
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