Civil engineering; the field and works related to designing, constructing, and maintaining public structures such as roads and bridges.
大学で土木工学を専攻している。
I am majoring in civil engineering at university.
市は新しい橋の土木工事を来月始める予定だ。
The city plans to begin civil engineering work on the new bridge next month.
彼は土木技術者としてダム建設に携わった。
He worked on dam construction as a civil engineer.