自由树就是一个无回路的连通图(没有确定根,在自由树中选定一顶点做根,则成为一棵通常的树)。
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。
We give most of the trees away at the free tree days organized throughout the city.
从我们苏达街的房子里,能看到这条街的尽头和对面自由学校校园里的树。
The end of Sudder Street, and the trees on the Free School grounds opposite, were visible from our Sudder Street house.
可以使用标记云和树型图表类型绘制自由的文本。
Free text can be plotted using the tag cloud and tree map chart types.
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