| 单词 | hard nut |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔a hard/tough nut (to crack)〕The problem is a hard nut to crack.这是个棘手的问题。韦氏高阶〔a tough/hard nut〕As a teenager, Jack was a real hard nut, always getting into fights.十几岁的杰克很难管教，总是跟人打架。剑桥高阶〔hard〕The Kyoto Accord is one hard nut to crack.《京都议定书》晦涩难懂。外研社新世纪〔nut〕The question of world hunger is a hard nut to crack.世界范围的饥荒是一个很难解决的问题。英汉大词典As a teenager, Jack was a real hard nut, always getting into fights.作为一个十几岁的孩子，杰克实在是个很难弄的人，他总是卷入到打架中去。剑桥国际It was then a hard nut to crack. 在那时是一桩很棘手的事。译典通 |
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