硬骨头——不大好啃

喻事情很难做，或难以取胜。

• 死活
• 死活一般大
• 死活不开口
• 死活不开口，神仙难下手
• 死活不管
• 死活也不知
• 死活看不出个样儿来
• 死活都要钱
• 死海
• 死澄澄
• 死火
• 死火山
• 死灭
• 死灰
• 死灰不然
• 死灰再燃
• 死灰复然
• 死灰复燃
• 死灰复燃东山再起
• 死灰复燎
• 死灰更燃
• 死灰槁木
• 死灰燃
• 死灰腾焰
• 死灰色
• nonperceptivenesses
• nonperceptivities
• nonperceptivity
• nonperfected
• nonperfection
• nonperfections
• nonperforating
• non-performance
• nonperformances
• nonperformer
• nonperformers
• non-performing
• nonperforming
• nonperilous
• nonperilously
• non-periodic
• nonperiodical
• nonperiodically
• nonperiodicals
• nonperishables
• nonperjuries
• nonperjury
• nonpermanence
• nonpermanences
• nonpermanent