争论原文研究参考：
"the narrowest definition would embrace only depictions of children engaged in explicit sexual activity. "
摘自《Child pornography in the digital age》。（XX提供澳洲法律官方网站http://www.aic.gov.au/publications/chpornography）
这里大家争论的一个焦点就是”explicit sexual activity“。什么是”explicit“，我想xx的辞典里是”Fully and clearly expressed; leaving nothing implied.明白的，清楚的：表达得完全的和清楚的；毫不含糊的“。因为是要清楚的表明有色情成分，如性交等真实明确的行为才是色情。只有清楚明白的色情才是色情，性暗示、模拟性交等等由于模糊不清所以按照ＸＸ的逻辑都是不应该归入此类的。是不是？
”One could, however, imagine suggestive depictions of children entailing other than sexually explicit behaviour. To some observers, there is a significant difference between pornography and erotica（目的在于引起性欲的文学或艺术作品）; to others, not.“
简单的解释就是能引起性幻想的作品不应该受此限制。
再查一查，你会发现explicit还有另外的意思：”Describing or portraying nudity or sexual activity in graphic detail.描述裸体或性行为的：轮廓鲜明地描述或描绘裸体或性行为的“－－《美国传统字典》
《维＠基＠网》
Sexually explicit material (video, photography, creative writing) presents sexual content without deliberately obscuring or censoring it. The term sexually explicit media is often used as euphemism for pornography. It includes unsimulated sex acts, sexual intercourse and uncovered genitalia（性器官）.
The term is not very specific, and what is or is not sexually explicit varies from culture to culture. Visual exposure of female breasts are considered mildly explicit, the penis or vulva and surrounding pubic hair are widely considered sexually explicit, and unobscured sexual intercourse universally so. Some also consider certain language or writing (authentic reports or fiction) to be sexually explicit.
Sexually explicit material usually have age ratings on them to ensure that unsuitable viewers are not exposed to them.
裸露主要性器官就不论了，女人裸露乳房和男女性器官附近的毛发也是被公认是”sexually explicit“，那儿童裸体摄影中的裸露性器官及附近的毛发和裸露女童乳房（如文中的实例）是否就不是explicit。如果归入了explicit的范畴，那根据法律是不是属于Child pornography？这个法律条文源于《Child pornography in the digital age》，所以我不能胡乱下判断就说所有的儿童裸体艺术（如绘画，如不裸露性器官的作品）都属违法。