对于博客行为的研究不是很多，所以这个研究对于我们了解和理解写博客这种行为是一种非常有价值的贡献。
There isn't a whole lot of research into blogging, so this study is a valuable contribution to our knowledge and understanding of this behavior.
如果考虑到我们的时间是多么宝贵—光是分配给工作，家庭，朋友都已经不够了—那么分一部分出来清扫公园或者派发食物就确实是一个非常有价值的贡献。
Given how precious our time is — cramped by demands of work, family and friends — setting some of it aside to clean parks or deliver meals seems like a valuable donation.
他们也成为了复审和分析过程的主要贡献者，并且无疑是团队中非常有价值的成员。
They were also becoming major contributors to the review and analysis process and were clearly valued members of the team.
他们也成为了复审和分析过程的主要贡献者，并且无疑是团队中非常有价值的成员。
They were also becoming major contributors to the review and analysis process and were clearly valued members of the team.
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