It is a problem difficult to solve.
这是一个难解决的问题。
I meet a problem difficult to solve.
我遇到一个难以解决的问题。
It is a problem difficult to work out.
这是一个难以解决的问题。
It is a problem difficult to work out.
这是一道难以解决的问题。
In itself, it's not a difficult problem to solve.
这本身并不是个难解决的问题。
If more than a few weeks go by, we might have a real problem that would very difficult to fix in time for you to graduate.
如果好几个星期过去了，我们可能会面临一个真正的问题，这个问题我们很难在你毕业的时候解决。
How to improve the quality of products was a difficult problem to him.
如何提高产品质量对他来说可是个难题。
She is working at a difficult problem in mathematics.
她在做一道数学难题。
But the problem is a difficult one to solve.
但这是一个难以解决的问题。
If a problem can be solved by money, it is not really a difficult problem.
如果一个问题可以用金钱得到解决，那么它就不真是一个困难的问题。
It is very difficult to determine the cause of a problem that only occurs sometimes.
只有偶尔会发生的问题是很难确定问题的起因的。
Fortunately, it's not a difficult problem (see Listing 6) to fix.
所幸的是，这个问题不难解决(见清单6)。
Finding the solution to a difficult life problem.
解决生活中的难题。
But for a driver, if you have an accident and you have this problem, the recovery is more difficult.
但对于一个车手，如果你经历过一次事故，并且有这些问题，恢复起来就要困难些。
Never have I come across such a difficult problem.
我还从没有遇到过这样困难的问题。
Auctions use the market mechanism to solve a difficult business problem: pricing.
拍卖利用市场机制，解决了一个商业难题：定价。
Providing dynamic internationalization of information for display is a difficult problem.
为显示提供信息的动态国际化是一个难题。
This is a sad and difficult — but not necessarily impossible — problem to overcome.
这个问题很令人沮丧，而且解决起来也很困难，但未必不可能。
At first there was a seemingly difficult problem.
在开始的时候存在一个难题。
But there's a problem: scientific research on race is hard to come by, and it's not difficult to see why.
但是有一个问题：有关种族的科学研究很难得，很难了解其原因。
He has so difficult a problem, as none of us can solve.
他有如此难的一个问题，我们没有人能解决。
In the nonprofit sector area which is the one that has a difficult name problem.
在无利润区，我们很难给它命名。
It's really a difficult problem.
这真是个难题。
Without a database concept such as SKIP LOCKED DATA, this problem is difficult to solve.
如果没有SKIPLOCKEDDATA这样的数据库概念，这个问题是很难解决的。
Parallel program is an active research field presently, and it is also a difficult problem.
并行程序目前是一个活跃的研究领域，也是一个困难问题。
We have a difficult problem to solve.
我们面临一个难以解决的问题。
He's working on a difficult problem.
他正在研究一个困难问题。
He's working on a difficult problem.
他正在研究一个困难问题。
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