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	IofC IOM -ion ion Iona Ionesco, Eugène Ionic ionization ionize ionizer ionosphere iota IOU IOW Iowa Iowan IPA IP address IPC IPL IPO iPod ipso facto IQ ir-

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