He had brought the flowering plant to a university expert because varieties of blazing star defy nonexpert identification.

他曾经把开着花的植物带给大学的专家看，因为星形花植物多种多样，非专业人士是分辨不出来的。

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This dichotomy of opinion makes assessing EMDR more difficult than it would be otherwise, especially for a nonexpert in the practice, such as I.

CNN: What is EMDR therapy and does it help OCD?

By virtue of their abstraction and the somewhat abstruse quality of representational conventions, architectural drawings are by nature less accessible, but if ever there were examples for the nonexpert public to appreciate, these are they.

WSJ: Masterpieces on a Shopping List | Michelangelo Master Drawings | Museum of Fine Arts Boston | By Cammy Brothers