Difficult to talk about
难───hard;讲───speak
Hard work never hurt anyone.───努力工作绝无害处。
That's a very hard question.───那是个很难的问题。
It's pretty hard to explain.───这事很难解释清楚。
Just a few years ago, it would be hard to imagine these people even knowing each other, let alone engaging in a deep collaborative process.───就在几年以前，还很难想象这些官员能够相互认识，更不要说进行深入的合作了。
A sudden fall in sales will leave them without cash at a time when bank overdrafts are hard to secure or to increase.───销售的突然下降将让他们没有现金，同时银行透支额也很难保证或增加。
Keep calm at least When you had fallen to the bottom of your life, every people around you would tell you: Be hard-bitten and be happy!───在你跌入人生谷底的时候，你身旁所有的人都告诉你：要坚强，而且要快乐。
It is hard to please all parties.
The drugs are sold for hard cash.
Love makes all hard hearts gentle.
He is old,yet he works hard.
Hard work never did anyone any harm.