an artificial waterway constructed to allow the passage of boats or ships inland or to convey water for irrigation
运河,灌溉水渠。
a tubular duct in a plant or animal, serving to convey or contain food, liquid, or air
(植物或动物体内用来传送或容纳食物、液体或空气的)管,道
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the ear canal .耳道。
【天文】 火星运河。[ORIGIN: named
"late Middle English: from Old French, alteration of