We've simply been unable to locate him.是什么意思？

We've simply been unable to locate him.

我们就是没办法找到他。

ve

abbr. Venezuela 委内瑞拉；

例句
Conclusion The TCD abnormity of VE occurs mainly in intracervical artery system.
结论病毒性脑炎脑血流动力学异常改变以颈内动脉系统为主.

simply

adv. 简单地，朴素地，（引出概括或解释）不过，仅仅，简直，<非正>实在；

例句
Many parents simply abdicate all responsibility for their children.
许多父母对孩子简直是完全撒手不管。

been

v. 用来表示某人或某物即主语本身，用来表示某人或某物属于某一群体或有某种性质（ be的过去分词 ），在，存在，不受干扰，去过了，be的过去分词；

例句
Have you been able to have any kind of contact?...
你联系上了吗？

unable

adj. 不能的，不会的，无能力的，不熟练的，不能胜任的，〈罕，诗〉弱，无力的；

例句
The child was unable to offer an articulate description of what she had witnessed.
孩子无法对她所目睹的事情作出清楚的描述。

to

prep. 向，朝着，到，关于，属于；adv. 朝一个方向的，到某种状态，关闭；

例句
I suggest you leave it to an expert...
我建议你把它留给专家来解决。

locate

vt. 位于，说出来源，查找…的地点，确定…的位置；vi. 定位，定居；

例句
We will be analysing all the things she has told us in the hope that we can locate the person responsible.
我们将分析她告诉我们的所有事情，希望能找出罪魁祸首。

him

pron. (he的宾格)他；

例句
They said goodbye to him as he got aboard the train at Union Station.
当他在联合火车站登上火车之际，他们向他道别。