decide和determine有什么区别？

decide 指“经过询问、研讨和考虑之后, 在几种可能的选择之中作出决定”, 如:
She decided to leave here on Sunday instead of Monday.
她决定星期日而不是星期一离开这里。
determine指“决心作某一件事而不动摇”, 如:
We have determined to get the work done ahead of schedule.
我们已经决定要提前完成这项工作。

decide,determine这两个词都有“决定”的意思。
decide的含义是“不再迟疑不定”，而determine含义是把某件事确定下来。
to decide to give a dinner party (决定设一次宴会，此语的内涵是：关于设宴会一事不再迟疑了
在be determined to do…这个固定的结构中，过去分词determined的词义为“下定了决心”。decide的名词为decision,determine的名词为determination.
At first,she decided to go to the police,…
起初，她决定去找警察……
On the last day I made a big decision.
在最后一天我作了一个重大的决定。
注：decide后跟宾语从句时，其含义有时是“断定”。
I decided that I must have taken a wrong turning somewhere.
我断定我一定是在某处拐错弯了。
I have been offered a large sum of money to go away,but I am determined to stay here.
给我提供了一大笔搬迁费，可是我决心留在这个地方。
The size of your feet determines the size of your shoes.
你的脚的大小决定了鞋的尺码。
The determination of the meaning of a word is often difficult without a context.
脱离上下文来确定一个词的含义常常是困难的。
注：在determine to do…, determine on (upon)…和determine…，(宾词从句)三个搭配中，determine的词义和decide几乎没有多大差异
He determined to learn medicine. (He decided to learn medicine.)
他决定学医。
We determined on an early start.(We determined to start early.)
我们决定早动身。
Have you determined where you are going to spend your holidays? (Have you decided where you are going to spend your holidays?)
注：decide 某人to do 某事：“决定使某人做某事”
希望对你有所帮助！