Atypical behavior is not the accepted type of response that we expect from children.

非典型行为并不是我们期望从孩子们那得到的那种可接受性的反应。

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Where do we draw the line between normal, healthy, typical behavior and what we might want to call abnormal, atypical, deviant, unhealthy maladaptive mental problems?

我们如何界定什么是正常，健康，典型行为，什么是变态，非典型，异常，不健康，适应性差的精神问题？

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"I don't think this behavior was atypical" of an untrained hacker.

CNN: Graphic

In addition to jumping on such a slow trading day, the move was also atypical of the fund's recent behavior.

FORBES: Magazine Article