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investigate [investigated, investigating, investigates]▼(to examine)verb[UK: ɪn.ˈve.stɪ.ɡeɪt] [US: ˌɪn.ˈve.stə.ˌɡet]
research [researched, researching, researches]▼(to make an investigation into)verb[UK: rɪ.ˈsɜːtʃ] [US: ri.ˈsɝːtʃ]
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