This goal is accomplished almost automatically in hierarchical databases, but takes work in relational ones.
这个目标在层次数据库中几乎是自动完成的,但在关系数据库中需要做些工作。
A Dane and a Dutch person meeting in Rome will almost automatically find themselves speaking to each other in English.
如果一个丹麦人与一个荷兰人在罗马相遇,他们会不约而同地用英语交谈。
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