This is a difficult problem to solve.
这是一个很难解决的问题。
We must arrive before ten o 'clock, this is a difficult problem.
我们必须十点钟以前到达，这是个难题。
I know this is a difficult problem, but do you prepare to face the challenge?
我知道这是个难题，但是你准备好迎接这个挑战了吗？
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。
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。
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。
This is quite a complicated problem and one which is difficult to solve.
这是一个相当复杂的问题，这是一个难以解决的。
This is too difficult a problem for the beginners to solve.
这个问题对于初学者来说太难解决了。
This is such a difficult problem as all of us can't work out.
这是一个我们所有人都不能解决的难题。
A difficult problem in this area is how to guard against fraud.
在这区域的一个困难的问题是该如何防止欺骗。
This is too difficult a problem for me to solve.
这对我来说是一个太难解决的问题。
This is a most difficult problem to solve.
这是一个非常难以解决的问题。
This is a problem that can be difficult to solve with solid roller bearings.
这是一个问题，可能难以解决固体滚子轴承。
This is as difficult a problem as you are likely to meet.
像这样的难题，你可能会碰到。
This is too difficult a problem.
这是一个非常困难的问题。
This is too difficult a problem for me.
对我来说这是一个太难的问题。
This is a difficult social problem to solve.
这是很难处理的社会成绩。
Next year it is much more difficult to hunt for a job. The number of people who are out of work will increase. But this is not a problem.
明年找工作就更难了。失业人数会增加。但是这不是问题了。祝好运！
This is too difficult a problem for him.
这个问题对他来说太难了。
This is too difficult a problem for him.
这个问题对他来说太难了。
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