Your main interest here is creating the relevant mappings from a relation, and then enumerating them as part of a condition.
这里你的主要兴趣是从关联建立相关的映射，然后对它们计数作为条件的一部分。
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"For example, England's Sites of Special Scientific Interest are in better condition than ever at 88.4% in favourable or recovering condition compared with 57% in 2003," it added.
Where Banks have been compelled to halt interest payments as a condition of receiving state bail-outs (which is the case across the European Union), they have sometimes been unable to do so.