If you generate a metaclass association or a stereotype association, you need to generate the tooling or shape for the stereotyped ends.

如果您产生了一个元类联合或者一个固定模型联合，您需要为这个固定模式终端产生工具或者形状。

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Don't define an association for the sake of association; do so only when you need to load them together, which should be decided by your business rules and design (please see Example 5 for details).

不要为了关联而定义关联；只在你需要一起加载它们时才这么做，这应该由你的业务规则和设计来决定(见范例5)。

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Despite the need for more research, the findings suggest that pets' effects on well-being may explain why 62 percent of U. S. households own a pet, according to the American pet Products Association.

尽管还需要更多的研究，但从现有的发现中来看，宠物对幸福感的影响也许能解释为什么美国62%的家庭都饲养着宠物，这个数据来自美国宠物产品协会。

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According to Greek philosophy, one of the defining characteristics of humanity that distinguishes it from other forms of existence is a deeply engrained social instinct, the need for association and affiliation with others, a need for friendship.

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The judges' criticism is echoed by the Sheriffs' Association, which questions the need for a council and warns of a "burdensome and, we suspect, expensive bureaucracy that will be the result of these proposals".

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Eve Knight, from the British Cardiac Patients' Association, said the study highlighted the need for all hospitals to perform to the highest standards.

BBC: NHS failing heart attack patients