- investigation; discovery
究明する investigate; discover; look into
- 原因を徹底的に究明すべきだ
- The cause should be thoroughly investigated.
- 科学者たちは癌がんの原因を究明中だ
- Scientists are trying to discover the cause of cancer.
- 彼の奇妙な行動の真の動機はまだ究明されていない
- The true motive behind his strange behavior has not yet been 「brought to light [made clear].
- 彼の失踪の真相を究明する
- get to the bottom of his disappearance