筋きん肉にく労ろう働どう

noun

physical labor; manual labor

Refers to work that relies on bodily strength rather than mental effort or machinery. Often contrasted with 頭脳労働 (intellectual labor).

• 建けん設せつ現げん場ばでは筋きん肉にく労ろう働どうが中ちゅう心しんだ