watercourse

n (channel of a) stream, brook or man-made waterway 河道; 水道; 渠道.

water-line, water-main, water-meadow, water-melon, water-mill, water-pistol, water-power, water-rat, water-rate, water-ski, water-skiing, water-softener, water-spout, water-supply, water-table, water-tight, water-tower, water-vapour, water-wheel, water-wings, watercress, watered silk, waterfall, waterfront, watering-can, watering-place, waterless, waterlogged, Waterloo, waterman, watermark, waterproof, watershed, waterside, waterspout, watertight, waterway, waterworks, watery, watt,