A few of them are almost certainly shortcomings in Ostrich, while others seem to intend to match literal full strings, like ^(로그인하지 않고)$ ("without logging in"). Presumably they're from internal use.
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Data experts we contact in Sweden and abroad question how aware users really are that their data may be used to train Meta’s AI.，这一点在heLLoword翻译官方下载中也有详细论述
Europe and launching a pilot project with humanoid robots at the