慢速英语:Palestinians Turn Organic Waste into Gas for Cooking

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organic – adj. related to living things; not using man-made chemicals

harness – v. to use something for a purpose

solar panel – n. a large, flat piece of equipment that uses the sun's light or heat to create electricity

portable – adj. something that can be moved or transported

anaerobic – adj. living without air (for bacteria); strengthening muscles by forcing them to work very hard in a brief time (for exercise)