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偽り， 詐り， いつわり
1. lie, falsehood, fiction, fabrication
谎言，虚假，虚构，捏造
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詐欺， さぎ
1. fraud, swindle, graft, cheating, trick, scam
2. saying you're going to do something but in the end not doing it, making promises without keeping them, flaking out
欺诈，诈骗；嘴上说要做某事却最终不做，许下承诺却不兑现，爽约