为了回答研究问题，设计了三个子问题。
To answer the research question, three subquestions are devised.
子问题是我要求的正确方法吗？
但是它增长的很快,原因就是它的重叠子问题。
第二章：给出了带记忆的信赖域子问题模型。
Chapter 2: a trust region subproblem model with memory is proposed.
我的问题的要点可能不是一下子就能看出来的。
这问题一下子把我难住了。
问题只是哪个进程首先终止：父进程还是子进程。
It's just a question of who dies first: the parent or the child.
等他们开始上学的时候就“啪”的一下子被贴上了“问题儿童”的标签。
— to get labeled as problem kids as soon as they enter school.”
所以让我们问问，这个问题是否有最优子结构。
So let's ask, is there an optimal substructure to this problem.
我们不能一下子把所有问题都解决。
还记得你建议改变弹簧的压力吗?那是个好主意——一下子就解决了问题。
Remember you suggested altering the spring tension?That was good thinking—it solved the problem immediately.
一下子我还不能(把这问题)解释清楚。
我们不能一下子把所有问题都解决。
The lawyer's advice led to the resolution of all our problems.
子域可能还会产生问题。
作为话题，这个问题一下子就谈完了。
他当然是，但那不是老爷子要问的问题。
He most certainly did, but that was not what the Don was asking.
我得到的第一个暗示表明出了问题就是姥姥一下子僵住了，变得令人可怕。
My first indication that something was wrong was that granny became terribly still .
唯一的问题是，你不能吃树子。
我们要是能一下子解决所有问题就好了。
当然这是个历史遗留问题，不是我们能一下子改变的。
Obviously, this is an issue left from the history which can not be changed suddenly.
讨论了子空间上一类矩阵反问题，得到了问题有解的充分必要条件及解的表达式。
In this paper, a class of inverse problem for matrices on subspace is studied.
讨论了子空间上一类矩阵反问题，得到了问题有解的充分必要条件及解的表达式。
In this paper, a class of inverse problem for matrices on subspace is studied.
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