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当局， とうきょく

1. authorities, relevant authorities, authorities concerned 2. this office

当局

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事故原因， じこげんいん

1. source, cause of an accident

事故原因

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究明， きゅうめい

1. investigation (esp. in academic and scientific contexts)

调查（尤其在学术和科学领域）

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急ぐ， いそぐ

1. to hurry, to rush, to hasten, to make something happen sooner

赶快，匆忙，加快，使某事更早发生

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