inadvertence insouciance slip over unconcern
... due to inadvertence 出于无心 inadvertence insouciance slip over unconcern 漫不经心 immodesty/inadvertence/inadvertency 不慎 ...
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inadvertence insouciance slip over unconcern
疏忽大意，漫不经心
以上为机器翻译结果，长、整句建议使用 人工翻译 。