On the basis of fossils yielded from the exotic blocks, the age of this group-complex was defined to the Late Ordovician or the Paleozoic.

以往曾依该岩群岩块中的珊瑚、腕足类、腹足类化石等划分为晚奥陶世或古生代。

youdao

For example, a view based on a very complex query that returns only five rows (for example, a GROUP BY query) is costly to evaluate at the remote source.

例如，基于一个非常复杂的、只返回5行的查询(例如一个GROUP BY查询)的视图在远程数据源上计算起来代价较高。

youdao

There is no need to explicitly reference the attribute group in either complex type definition.

无需在每个复杂类型定义中显式地引用属性组。

youdao

But they reveal little understanding of the complex interest-group politics and broader meaning of Medicare in America, as a social insurance program, as a pillar of the liberal welfare state, as a force in the lives of millions of people.

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Young -- editor of a local history group -- remains confident, going on to say that "It's not complex" and that much of the message relies on acronyms that became prevalent in WWI due to the short battery life of morse code systems.

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He's the unofficial leader of the group, but he suffers from a super-size inferiority complex because his superpowers are limited to fits of bad temper.

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