The soil in return for her service keeps the tree tied to her, the sky asks nothing and leaves it free.
泥土把树木绑缚在身上作为服侍她的回报，天空却毫无所求，任它自由生长。
2
It's an extremely useful tool in situations where boilerplate code is required, helping to keep your source treefree of clutter that contributes nothing to the operation of the application.
在需要样板代码的地方，它是极为有用的工具，可以帮助源代码树消除那些对应用程序的操作毫无用处的混乱。
3
Free text can be plotted using the tag cloud and tree map chart types.