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Sentence

彼かれは営えい々えいと研けん究きゅうに励はげんでいる。

Span Details

営えい々えい

diligently; assiduously; unceasingly

adverb, taru-adjective

quotation, conditional, companion, or and marker

研けん究きゅう

research; study; investigation

noun, suru verb

direction, time, indirect object, or target marker

work hard; strive; devote oneself

-> 励むgodan verb

ongoing or resultant state

-> ているgrammar