further和farther的区别

Farther
If you're a stickler for the rules,then farther should be used with （physical distance).In other words,if you're thinking about more miles,more kilometres,more inches,more centimetres,etc.,then you almost certainly want farther.
Farther is limited to the idea of more distance.
Further,on the other hand,covers all topics (even distance these days) and can mean furthermore,moreover,more,additional,extra and supplementary.

further更常用，没用什么特殊用法非要用further而不用father.你可以把father理解成汉字里的通假字