journalとは何ですか?A personal record of occurrences, experiences, and reflections kept on a regular basis; a diary.An official record of daily proceedings, as of a legislative body.Nautical A ship's log.Accounting A daybook.Accounting A book of original entry in a double-entry system, listing all transactions and indicating the accounts to which they belong.A newspaper.A periodical presenting articles on a particular subject: a medical journal. The part of a machine shaft or axle supported by a bearing.