The steam heating and the electric heating may select, under draining water USES drains water, the available hose directs to the trench, maintains indoor clean.
蒸汽加热及电加热可选用，排水采用下排水，可用软管引至地沟，保持室内清洁。
2
History books tell us that even as the lavish party was going on in the palace, the enemy armies were digging a trench and draining the river that ran under the high, thick strong walls of Babylon.