The hard, woody, outer peel is so hard that it has to be cracked with a hammer.

木质硬壳硬到不得不用锤子才能砸出裂缝。

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ABSTRACT The uncertainty in Supply Chain Management is a hard nut to be cracked that can not be obviated for companies.

供应链中的不确定性是企业和组织在管理和决策中不可回避却又十分棘手的问题。

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Many ancient scripts have been deciphered (see "The great decipherments" and The ancient scripts), but some significant ones have yet to be cracked.

尽管人们已经破译出了许多古文字(见图表“历史上重要的破译文字”)，但是尚有一些重要的文字正等着人们去解读。

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Today,a few blocks up from the Boll Weevil Statue, conveyor belts carry rivers of peanuts to be cracked and ground at the Sessions Company.

VOA: standard.2010.08.10

Just like,with the body view,we wanted to say, Being alive is not all it's cracked up to be, the real question is not,am I alive,on the body view?

从肉体理论上，我们想要说，存活一事并非所想，真正的问题是，肉体理论角度看来，我还活着吗？

耶鲁公开课 - 死亡课程节选

Even though their iPhones were unlocked versions from Hong Kong, and had to be cracked, they were welcomed among many urban Chinese.

FORBES: For Apple, The Best China Strategy Was Not Having One

Among them are the right to file a joint return (which is not always quite as much as it is cracked up to be) and the unlimited marital deduction for estate tax purposes.

FORBES: Another Judge Declares DOMA Unconstitutional

She has a lead that the Bullet wasn't the war hero he's cracked up to be.

CNN: Review: 'Leatherheads' drops the ball