这是个世界性的话题。
群育，又称群性教育，是一个历史的、世界性的话题。
Group education, also called education in groups, is a historical topic in the world but is little researched.
现在，非营利组织已成为世界性的话题，许多社会问题的解决几乎都涉及到了非营利组织。
Nonprofit organization has already become the world topic of conversation now, a lot of social problem solving has dealt with nearly all nonprofit organization.
2002年被世界旅游组织定为“国际生态旅游年”，自此，自然与人文生态环境的保护成为一个世界性的话题。
Since 2002 was designated as "international Ecological Tourist Year", the protection of natural and humanist environment has become an international topic.
这是个世界性的难题：中国人与外国人有哪些共同感兴趣的话题，可以让我们畅所欲言？
Here is the million dollar question: what are some areas of common interests for Chinese and outsiders that can make for easy discussion?
Ok一词的起源一直没有定论，这也成为学术界多年来为之热议的话题。作为一个感叹词，ok这个英文词汇已经成为世界性的用语。
The origins of OK are not known with certainty, and have been the subject of much discussion and academic interest over the years.
Ok一词的起源一直没有定论，这也成为学术界多年来为之热议的话题。作为一个感叹词，ok这个英文词汇已经成为世界性的用语。
The origins of OK are not known with certainty, and have been the subject of much discussion and academic interest over the years.
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