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2Significato: exhaustingvery trying difficult arduous laborioustiring fatiguing grueling
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3Significato: propertyprecipitous arduous highabrupt sheer steep
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4Significato: laborioushard severe tough difficultexhausting burdensome arduous fatiguing
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5Significato: oppressivedifficult onerous heavyarduous troublesome burdensome
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6Significato: difficultarduous burdensome fatiguing tiresomewearisome onerous toilsome laborious
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7Significato: burdensomedifficult onerous heavyarduous troublesome oppressive
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8Significato: tiresomegrinding laborious strenuous tedioushard arduous onerous gruelling
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9Significato: precipitoussteep high abrupt sheer arduous
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10Significato: strenuousenergetic emphatic fatiguing intensevigourous Herculean overwhelming arduous