The only part remaining is the handling of error reporting (such as an unknown parameter flag character or a numeric value out of range).

最后剩下的部分就是处理错误报告（例如一个未知的形参标记字符或者一个超出范围的数字值）。

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Nations succeed or fail and define their essential character by the way they challenge the unknown and cope with fear.

国家成败及其主要特征决定于其对未知的挑战和对恐惧的处理，以及国家的管理水平。

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Compared with traditional character code matching method, these technology can prevent unknown viruses without virus library.

相对于传统的特征码匹配方法，这些技术不依靠病毒库，可以防范未知病毒。

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Cooper joins a growing cast for the next Spider-Man outing, including franchise newcomers Oscar winner Jamie Foxx as the villain Electro, Paul Giamatti as the Rhino, Dane DeHaan as Harry Osborn (son of Norman Osborn), Shailene Woodley as Mary Jane Watson, and Felicity Jones as an unknown character (rumored to possibly be Felicia Hardy aka the Black Cat).

FORBES: Chris Cooper Joins Spider-Man Sequel Cast

It is character--a stick-to-itiveness and a willingness to take risks, to take leaps into the unknown.

FORBES: THE EVIL THAT STRUCK US