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
The enemies of Barack Obama's health-reform plans have no more potent weapon, it seems, than to accuse him of seeking to replicate Britain's dreaded National Health Service on American soil.
医改计划的反对者们似乎也没啥特别的应敌之策，唯一的杀手锏就是指责奥巴马试图在美国复制可怕的英国国民医疗服务制度（National Health Service ，以下简称NHS）。
3
Ants are a necessary service to the soil for all plants and trees.