在这一天人们通常交换礼物，吃圣诞火鸡和圣诞布丁。

People usually exchange presents, and eat Turkey and Christmas pudding on this day.

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在婚礼上，新娘和她未来的丈夫通常会交换金戒指，这金戒指象征着他们的婚姻将永远持续下去。

During the marriage ceremony, the bride and her would-be husband usually exchange gold rings that represent the idea that their union will continue forever.

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路由器通常作为网络交换的一部分。

A router is often included as part of a network switch.

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The point is that they have received what they have through the free exchange of people who have given them their holdings, usually in exchange for providing some other service Good enough.

关键是，他们赚到的这些钱,都是通过与人自由交换得来的,那些人也得到了报酬，通常是以提供其他服务作为交换的,很不错。

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