他们最近铺了一条地下管道的英文

recently they have laid an underground pipeline

• 他们:    they
• 最近:    recently; lately; ...
• 铺:    shop; store
• 了:    finish; complete; ...
• 一条:    a; an article; a c ...
• 地下:    on the ground
• 管道:    pipeline; channel; ...