1The architect designed the building's drainage system to ensure that rainwater would drain efficiently and not accumulate on the roof.
2Does the new policy aim to drain the country's resources by investing in unsustainable projects, or will it stimulate economic growth?
3The engineers worked tirelessly to unclog the drain and restore the flow of water to the parched crops.
4To drain the swamp, the government needs to address the root causes of corruption and not just its symptoms.
5There is a growing concern that the proposed development will drain the local ecosystem of its unique biodiversity.