"00748058-a"^^ . "0"^^ . "300713306"@en-us . "rugged"^^ . . . . . "300748058"@en-us . "300748058"^^ . . "tough"@en-us . "0.875"^^ . "inter"^^ . "scalar"^^ . . "rugged"@en-us . "very difficult; severely testing stamina or resolution; \"a rugged competitive examination\"; \"the rugged conditions of frontier life\"; \"the competition was tough\"; \"it's a tough life\"; \"it was a tough job\""@en-us . . . . "inter"^^ . "300717276"@en-us .