请英语高手翻译一下这段。。谢绝用翻译器。

General PrinceplesDesign in the garden is not achieved by the rigid application of rules.It is free and creative,and will call for the controlled use of the imagination.It demands the same qualities as are found in a work of art,and we must at once search out certain principles which will be a guide not only in the conception of the garden as a whole,but in the component parts down to the placing of the smallest plant.Such principles applied to our particular medium may very well include the following:Proportion ant ScaleThis might be defined as a pleasing relationship between the three dimensions--length,breadth ant height.Make your lawn not too long,not too wide,perhaps containing bed which is not overwhelmingly bulky,yet not--lost in its surroundings.Use materials and plants in scale with the size of your plot:for a group of trees on a small lawn use laburnums not limes;for a small house avoid designing a terrace or forecourt with dimensions more suited to mansion.BalanceThis can be achieved by the careful distribution of accents over an area without necessarily spacing them equally each side of an axis.The lopsided effect of a garden,with all the weight in one part,can be an irritation.UnityThe component parts--lawn,borders,paved areas and separate small enclosures such a rose garden--will each be a pleasing feature,but they must be sited and shaped so that they fit together as surely as a jigsaw to form an equally pleasing whole.Elegance of Line ant ShapeIt is as easy to maintain a good shape as a bad one,and an effort should be make to design lines which are pleasing,curves without jags,which flow and carry the eye from one part of the garden to another.Contrast and HarmonyThere is great scope in the bringing together of shapes which enhance each other,curves flowing harmoniously together or by contrast,straight with curve.In the planting of the garden there are endless opportunities for experiment which lead to originality.The contrast of fine foliage with coarse,rounded outlines with vertical or spiked growth,,the harmony of blended flower and foliage colours,and the sharp contrast of white flowers against red,yellow against purple are examples.