persistent [pəˈsistənt] adj. 坚持的，固执的
avoid [əˈvɔid] v. 避开
【派】avoidable 可避免的
【扩】evade 躲避，规避
* * *
A: Why do you always try to avoid me?
B: No, I've just been busy.
A：你为什么老是躲着我？
B：不是，我只是太忙了。
* * *
insist [inˈsist] v. 坚持做
【派】insistent 坚持的
【扩】insist on 坚持，坚决要求
* * *
A: The gap is too great.
B: I think it unwise for either of us to insist on his own price.
A：差距太大了。
B：我想我们双方都坚持自己的价格是不明智的。
Something that is persistent continues to exist or happen for a long time; used especially about bad or undesirable states or situations. (坏的或令人不悦的状态或情形) 持续存在的
adjective [原级]执意的，坚持不懈的；持续的，反复出现的；（化学品，放射性）作用持久的，挥发慢的；（动植物某部位，如角、叶等）宿存的，不落的 - I had a persistent cough for over a month.
- persistent efforts 持续不断的努力
- persistent conflicts 持续性冲突
- a persistent smell 持久的气味
If you avoid something unpleasant that might happen, you take action in order to prevent it from happening. 避免 (坏事的发生)
verb [vt. 及物动词]避免，防止；回避，避开；撤销，使无效 - If you avoid doing something, you choose not to do it, or you put yourself in a situation where you do not have to do it.
avoid + n. / doing sth. 避免做……
- Try to avoid accidents while you are driving.
- No one can avoid making mistakes, but we should avoid making the same mistake.
If you insist that something should be done, you say so very firmly and refuse to give in about it.坚持认为; 执意要求
verb [vt. 及物动词]坚决要求，坚持；坚称 - My family insisted that I should not give in, but stay and fight.
insist on… 坚持认为某事是必要的或非常重要的
- He always insists on coming with you.
① vt. &vi. 坚持，坚决认为
insist on doing sth. 坚持做……
- My brother insist on going with me.
- He insists on the importance of the meeting.
② vt. &vi. 坚决主张/要求，一定要
- I insist on speaking to the manager.
- My wife insists that I (should) have my hair cut.