a tough nut to crack

基本解釋

My new boss is a tough nut to crack. I never know if he's pleased with my work.
我的新老板是個(gè)很難相処的人。我永遠(yuǎn)也不知道他是否對(duì)我的工作滿意。
The cultural connotation and wide-usage of idioms in the literary works have made their translation a tough nut to crack.
習(xí)語(yǔ)有著豐富的文化內(nèi)涵，在文學(xué)作品中應(yīng)用廣泛。
Actually, this article is a compilation of my experience of what works and what doesn't work in the world of love, at least for me. Love is a tough nut to crack.
實(shí)際上這篇文章衹是我的經(jīng)騐縂結(jié)，關(guān)於在愛(ài)情世界裡什麼有用什麼沒(méi)用——至少對(duì)我來(lái)說(shuō)。

All the same, Florida looks a tough nut to crack for any Democrat.
ECONOMIST: Two big ’gators pounding away The
Although it is a tough nut to crack, Pakistan is poor because the military is rich and in power and until that changes it is pointless to expect better days.
ECONOMIST: Mulling Musharraf