In 1995, the FUF set up a program called Tree Care.

1995年，“城市森林之友”（FUF）设立了一个名为“爱护树木”的项目。

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For example, if you write a program that allocates and frees many tree nodes, you might decide that is worth it to cache some nodes, assuming you know of a fast way to do this.

例如，如果你写一个分配和释放很多树节点的程序，你会认定高速缓冲一些节点是有价值的，假设你知道一种快速的方式能做到这一点的话。

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On the other hand, you would store the location of a program in the system tree, as that location is the same for all users and is potentially useful to all users.

另一方面，您要将程序位置存储在系统树中，因为位置对于所有用户是相同的，并且所有用户都可能用到它。

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In it,Charlie Brown has to choose a Christmas tree for a special Christmas program.

VOA: special.2009.10.25

Since I last tested Ancestry in 2006, the company has revamped its desktop software program, Family Tree Maker, so the program can synchronize with Web-based data on Ancestry.com.

WSJ: Digging Deeper Into Roots With Spruced-Up Ancestry.com

He'd won the book in an Arbor Day poster contest for schoolkids that had coincided with a citywide tree-planting program administered by the Department of Parks and Public Property.

NPR: Roth Rewrites History with a 'Plot Against America'

Instead, the electricity distributor recommends a good tree-trimming program.

FORBES: Upgrading the Grid by Going Underground