（坚持）insist on ,adhere to,stick to区别?

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没那么复杂insist on 保持立场
adhere to 黏合,遵守 （书面语,比较正式）
stick to 粘了个啥啥啥,照办啥啥啥（是不是感觉很口语）
如果是对话中提到,用stick to；说明书上提到,用adhere to;
======以下答案可供参考======
供参考答案1:
上述短语都是的意思; adhere to 与 stick to 比较接近/同义字:
(1) insist on:坚持
(a)I insisted on driving him home.
(b)He insists that I was to blame for the accident.
(c)He insisted that I should go. (坚决要求)
(2)adhere (to): [adherence=信奉，坚持]
(a)We will adhere to our plan. (坚持我们的计划)
(b)Mary adhered to her beliefs. (继续信念)
(c)I'm adhering to my principles. (坚持我的原则)
(3) stick to :
(a) We stuck to basic principles. 坚持我的原则
(b) We've decided to stick to our previous plan.
(c) If you stick to me, I'll stick to you.
(d) stick it out = 坚持到底
供参考答案2:
adhere属正式用语, 语意比 stick强, 指“自动地或义务地忠于一理想、事业、领导人等
insist on强调 坚决认为