层层转包和违法分包 mutlti-level contracting and ; mutlti-level contracting and illegal
层层转包和违法分成包 multi-level contracting and illegal sub-contracting
层层转包违法分包
Layers of subcontracting are illegal subcontracting
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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