But there are still questions without an answer!

但是至今还有一些问题没解决！

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What to do, ultimately, with such dangerous waste material is the nuclear power question without an answer.

最终如何处理这些如此危险的废料是核电站一个无解的问题。

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What we all respect and admire is the person who can stand up against overwhelming difficulties and persevere without an answer.

我们都敬佩和仰慕这样的人，他们能够悍然面对种种艰巨的困难，能够不问结果而坚持不懈。

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By using an internet protocol called UDP, it was able to aggressively send these scans without requiring an answer from the potential victim.

BBC: Aggressive net bug makes history

Manning left without giving an answer, and went off to inspect the Arizona Cardinals.

WSJ: Sympathy for Tim Tebow as Denver Woos Peyton Manning: Jason Gay

The figure looked at Mark with a blank stare and slowly faded away, leaving without providing an answer.

FORBES: An Internet Carol