单词	tar sands
释义	tar sandsˈtar sands noun [plural] sand or sandstone that contains bitumen (=a thick form of oil) which can be taken and used, for example as fuel
随便看	out-take out tray outvote outward Outward Bound outwardly outwards outweigh outwit outwork outworker outworn ouzo ova Oval oval Oval Office Ovaltine ovarian ovary ovation oven ovenproof oven-ready ovenware

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