howfar和how

howfar和how long区别是意思不同、用法不同。how far的意思是多远，询问路程、距离，how long的意思是多长，询问动作在时间上所持续的长度。

例句：No matter how far it is, I'll go there anyhow.什么远不远的，我去定了。You can only judge how high something is when you know how far away it is。知道了某物的距离才能判断其高度。How long have you been employed at this job? 你受雇做这个工作有多久了？