单词	rafter dam
释义	rafter dam noun : a dam formed by long horizontal timbers set at an angle to the banks and meeting in the center of the stream like the rafters of a roof principal Word History Etymology rafter entry 1
随便看	ribes ribeses ribesses ribeyes ribgrass ribgrasses ribhi ribhuses ribhusses ribiers ribityl ribless riblet riblets riblike ribliker riblikest ribo- riboflavin riboflavine riboflavines riboflavins ribonic acid ribonuclease ribonucleases

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