有很多类似不起眼的传统，从装饰圣诞树到亲吻槲寄生然后交换礼物，这一切都是如此的有趣。

There are lots of little traditions like this, from decorating the Christmas tree to kissing under the mistletoe to exchanging gifts that are a lot of fun.

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在这个房子的四周有很多树和花儿。

Around the house there are many trees and flowers.

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描述二叉树(binary tree)的节点有一个数据值、一个左指针和一个右指针；不过，很多数据体要求树不只有一个左分支和一个右分支。

Binary trees are represented by nodes that have a data value and a left and right pointer; however, there are many data structures that require trees with more than just a left and right branch.

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