a tough nut

Painting the ceiling was a tough nut to crack.

油漆天花板是件难事.

This is a tough nut to crack. It's going to take some time to figure out.

这是一件棘手的事。要花些时间才能想出来。

But in translation, cultural default of the original texts often turns out to be a tough nut to crack due to the difference of cultures.

但在翻译中，由于文化差异的存在，原文中的文化缺省往往变得十分棘手。

The final exam is a tough nut.

毕业考试不好应付。

The Daily Express describes Dr Carey as a pretty tough nut.

《每日快报》把凯里医生说成是特别难对付的家伙。

Manchester United will be a tough nut to crack.

曼联队是块难啃的骨头。

The final exam was a tough nut. City-wide math examination for graduation students of senior high schools

毕业考试不好对付.全市高中毕业生数学会考

I warned you the Kents were a tough nut to crack.

我警告过你了，肯特家是很顽强的。

Don't annoy him. he's a real tough nut.

别惹他，他可是个难对付的家伙。

We tried to get him to, but he won't peep. he's a tough nut.

我们也想让他去，但他不会吭声的。他是个硬骨头。

That guy is a tough nut.

那个家伙很难缠.

This national spelling bee is a tough nut.

全国拼字比赛难上青天。

I think that cancer is going to be a tough nut to crack in one term, sir.

我认为在癌症的问题上无法一蹴而就先生

It'strikes me that he's right a tough nut to crack.

在我看来,他可是个难对付的家伙.

He's a tough nut to crack.

他是个很难说服的人.

She's a tough nut to crack ; I don't think she'll give us permission.

她这个人不好说话, 我想她不会答应我们的.

My brother thought he was a tough nut but I saw him cry that day.

我哥哥自认为是很坚强的人,但那天我看见他哭了.

The cultural connotation and wide-usage of idioms in the literary works have made their translation a tough nut to crack.

习语有着丰富的文化内涵，在文学作品中应用广泛。

However, in the English translation of classical Chinese poetry, the transference of intertextuality turns out to be a tough nut.

然而，在中国古诗英译中，互文性的传递仍是一大难点。

How to ensure a high-efficient, reliable, safe and long-time operation of mechanical systems is still a tough nut.

如何保障机械系统安全、可靠、高效、低耗地运行仍是机械系统要研究解决的难题。

I asked her for the money, but she was a tough nut to crack and I went away without it.

我向她要钱，但她这个人很难对付，因此我空手而归。

This old man is a tough nut to crack!

这个老头是个难以说服的人.

She's a tough nut to crack; I don't think she'll give us permission.

她这个人不好说话，我想她不会答应我们的。

Michael Jackson appears to be a tough nut to break.

迈克尔·杰克逊似乎是一个颇为棘手的问题。

But when it comes to the wearables, the market is by far a tough nut to crack, as many consumers are yet to be convinced that they need these products, at least in major markets like the United States.

但就可穿戴设备而言，市场还需解决诸多难题，比如，很多消费者并不认为他们需要这些产品，至少在美国这样的大市场情况如此。