unable to solve
解决不了───unable to solve
There is some unanswered question that you have been unable to solve.───这是一个你也无法解决的无法回答的问题。
Ironically enough, there is still one age-old problem they unable to solve-identity.───讽刺性的却是他们仍有一个长期性的问题得不到解决——一致性。
He said the government was partly to blame for the recent violence because it was unable to solve the nation's problems.───他表示，政府对最近发生的暴力事件有部分责任，因为它未能解决国家问题。
Almost half of those who sat the exam were unable to solve elementary maths questions and a third failed a reading comprehension test.───参加考试的人中几乎有一半没能解出初级的数学试题，三分之一未能通过阅读理解测试。
There will be problems at all levels of difficulty, so no student should be unable to solve close to six problems each week.───作业会有不同难度的问题，所以应该所有学生均可在每星期解决接近六条问题。
Every hygienical economics issue has some moral composition, and will be unable to solve without ethical policy.
Huy nagged at the problem until, unable to solve it, he became drowsy.
The police have been unable to solve the riddle of her disappearance.
Existent law theories are unable to solve many basic problems about adjective law.