Translation guide
To discover the real truth or cause of something, especially after investigation.
The police are getting to the bottom of the incident.
Means 'to pinpoint the cause'. Commonly used when investigating the root of a problem or accident.
An investigation was conducted to get to the bottom of the accident.
Literally 'solve the mystery'. Used when the truth is hidden or puzzling, like in a detective story.
He is trying to get to the bottom of that strange event.
Means 'to investigate thoroughly'. Emphasizes the depth of the investigation rather than just finding the answer.
Let's get to the bottom of this issue and clarify what happened.
Literally 'approach the core'. A more dramatic way to say getting to the heart of the matter, often used in journalism.
The reporter is trying to get to the bottom of the scandal.
Do not translate 'bottom' literally as 底 (そこ). The phrase is idiomatic and means to uncover the truth or cause.