排出剩余灌溉水的水沟

irrigation ditch to carry a bill like a duck to water not fit to carry guts to a bear to carry away carry to effect carry coals to Newcastle carry owls to Athens carry a face carry off a sentry carry a sail carry a torch ditch irrigation irrigation ditch outlet bill to carry a decree into execution carry to irrigation water water diversion ditch carry water across field fight to the last ditch