这种苍鹭在北美分布最广，而且个头最大。
This heron is the most widespread and largest in North America.
鱼品也是世界上交易最广的食品，而且是许多较贫穷国家出口收入的一个主要来源。
Fish is also the world's most widely traded foodstuff and a key source of export earnings for many poorer countries.
而且，由于开发人员认为组件可能会被最广泛的重用，其为组件的输入和输出签名选择的数据类型可能不能产生最佳的性能。
Moreover, data types chosen for a component's input and output signature that a developer thinks may encourage the broadest reuse might not yield the best performance.
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