勤きん労ろう

noun, noun or participle which takes 'suru', intransitive verb

labor; work; diligent service

Refers to physical or mental work, often with a nuance of earnest effort. Common in formal contexts such as 勤労感謝の日 (Labor Thanksgiving Day).

• 勤きん労ろう感かん謝しゃの日ひは国こく民みんの祝しゅく日じつです。

  Labor Thanksgiving Day is a national holiday.

• 彼