沟渠
近义词与同义词
按词义分组列出，使用时请结合具体语境。
a conduit that resembles a bridge but carries water over a valley
any long ditch cut in the ground
a long narrow excavation in the earth
a passage for water (or other fluids) to flow through; "the fields were crossed with irrigation channels"; "gutters carried off the rainwater into a series of channels under the street"
long and narrow strip of water made for boats or for irrigation