This DVD box set is the real thing, exactly what you would find in a retail store, NOT a bootleg, copy or import.
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not a bootleg
不是盗版
以上为机器翻译结果，长、整句建议使用 人工翻译 。
Its not cheap or easy to design a new yoyo and its not like this is a multibillion dollar market that a bootleg will only have a small effect.
设计一个悠悠球并不便宜的，而且这也不是那种完全不会被盗版影响的“一块钱市场”。
youdao
But those bootleg versions have a more limited frequency range and can only receive signals, not transmit them.
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