In certain unusual cases — and I had a hard time thinking of many, to be honest — you may need to perform specific behavior when your custom objects are iterated over.

在某些不常见的情况下——老实说，我费了很大劲想到了很多——在您的定制对象可以遍历的时候，您可能需要执行特定的行为。

youdao

Ruby: I was responding to a specific individual who's been a long-time critic of web services, who argues strongly that what you need are the constraints that REST provides.

Ruby：我这话是针对一个长期批评Web服务的具体某个人说的，他强烈表明我们所需要的是由REST提供的约束。

youdao