intractable 难对付的，难解决的，难说服的

intractable     难对付的，难解决的，难说服的

tract = draw      拉，拖

intractable = in + tract+ able = 否定前缀 + 拖 + 表可能性形容词尾 = 很难对付的

A good friend once showed me that, even with an intractable problem, onecan still find a way to do the right thing.

一位好友曾向我证明，即使面对一个难以解决的问题，我们仍然可以找到方法去做正确的事。

I remember howunhappy you were when I didn't go and I imagine you came all this way to changeSerena's mind but she is intractable on this.
我记得我没去的时候你有多不高兴，我也知道你大老远来就为了让Serena改变主意，可她在这件事上很难被说服。