We give most of the trees away at the free tree days organized throughout the city.

我们给了大部分的树木以外,在自由树天内有组织整个城市.

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Meanwhile a method to construct a normalized form for a lattice - valued context - free tree grammar is presented.

同时给出了构造正规形式的等价文法的方法.

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The robot topology can be transformed in a rooted tree from free tree.

这类模块化可重构机器人可以用树状拓扑结构图来描述.

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But if you fell down you gave up your chance for a free tree.

但是如果你摔了跟头,那你最好放弃得到一棵免费圣诞树的机会.

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