难于登天

• as difficult as climbing up to heaven; be harder than to ascend to heaven; be harder than to leap to the sky; be more difficult than climbing up to heaven

参考释义

难于登天 [nán yú dēng tiān]

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近反义词

【反义词】

• 举手之劳
• 唾手可得
• 举手投足
• 易如反掌