Intractable problem
[计] 难解的问题
🧩 词语组成解析
intractable
[ɪn'træktəbl]
adj. 难对付的，难管教的，倔强的;难加工的;难治疗的;
in不，无，非+tract=draw拉，抽，引+able可...的、能...的 → 棘手的；难治的；倔强的；不听话的
🗣️ 情景例句
I said exactly the same thing to Grandpa.
我跟你爷爷说了同样的话。
To beat
殴打，打击
Knowledge began to increase as soon as the thoughts of one individual could be communicated to another by means of speech.
人一旦能用语言同别人交流思想，知识的积累便开始了。