土ど木ぼく作さ業ぎょう

noun

construction work; civil engineering work

Refers to heavy construction and earthwork, such as road building, excavation, and infrastructure projects.

• 彼かれは土ど木ぼく作さ業ぎょうの現げん場ばで働はたらいている。

  He works at a construction site.

• 土ど木ぼく作さ業ぎょうには重じゅう機きが欠かかせない。

  Heavy machinery is essential for civil engineering work.