| 例句 |
It was then a hard nut to crack.在那时是一桩很棘手的事。This problem is a hard nut to crack.这个问题是块难啃的骨头。The problem is a hard nut to crack.这是个棘手的问题。The Kyoto Accord is one hard nut to crack.《京都议定书》晦涩难懂。He is a hard nut to crack.他是个难对付的人。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。 |