To reply these existent problems indicates the necessity and significance of discussing and researching of eco-reason.
对这些现实问题的回应，凸显了今天我们探讨和研究生态理性思想的必要性和重要性。
参考来源 - 论生态理性·2,447,543篇论文数据，部分数据来源于NoteExpress
The reason for this is that the other tables in the DB2 UDB SAMPLE database have no primary key, and hence no index information to associate a unique ECO key with.
原因是 DB2 UDB SAMPLE 数据库中的其他表没有主键，因此没有索引信息可以关联惟一的 ECO 键。
Costa Rica has been on any eco-minded traveler’s radar for years, but with a new birding route in the northeast region of the country, there’s a new reason to pay the country a visit.
哥斯达黎加多年来受到环保旅游者的青睐。 但最近该国东北部新开发的观鸟路线，值得你再去一次。
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