decide

decide, determine, resolve, settle

这些动词都含“决定”之意。
decide: 侧重指经过思考、比较、讨论或询问之后做出的决定。
determine: 指经过深思熟虑，决心去做某事并坚持施行。
resolve: 语气较强，强调以坚定不移的信念去做或不做某事，暗含有远大抱负和坚强决心。
settle: 指排除犹豫、怀疑和争论之后作出明确的最终结论。

动词 decide:

1. reach, make, or come to a decision about something
   同义词：make up one's mind, determine
2. bring to an end; settle conclusively
   同义词：settle, resolve, adjudicate
3. cause to decide
4. influence or determine

1. It's difficult to decide between the two.
   对这两者，不易做出抉择。
2. That decided me to leave my job.
   那件事使我决定离职。
3. A chance meeting decided my career.
   偶然的会面决定了我的事业。
4. He decided to get married.
   他决定结婚。
5. Don't decide on important matters too quickly.
   不要过于匆忙地对重要的事情作决定。

de.cide

v.（动词）
de.cid.ed,de.cid.ing,de.cides
v.tr.（及物动词）
To settle conclusively all contention or uncertainty about:
解决：就…的争辩或不确定性做出最后的决定：
例句：
decide a case; decided the dispute in favor of the workers.
作出判决；在争论中作出有利于工人的决定

To influence or determine the outcome of:
决定：影响或决定…的结果：
例句：
A few votes decided the election.
一些选票决定了选举的结果

To cause to make or reach a decision.
使作出决定
v.intr.（不及物动词）
To pronounce a judgment; announce a verdict.
裁定，判定：宣布判决；宣布裁决
To make up one`s mind.
下定决心

来源：
Middle English deciden
中古英语 deciden
from Old French decider
源自 古法语 decider
from Latin dôcodere [to cut off, decide]
源自 拉丁语 dôcodere [切断，决定]
dô- [de-]
dô- [脱离]
caedere [to cut] * see ka…-id-
caedere [切] *参见 ka…-id-

【引伸】
decidabil.ity
n.（名词）
decid.able
adj.（形容词）
decid.er
n.（名词）
<参考词汇><同义词>decide,determine,settle,rule,conclude,resolveThese verbs are compared as they mean to make or cause to make a decision.
这些动词表示使作出决定的意思时可以进行比较。
Decide is the least specific:
Decide 最为普通：
例句：
.If two laws conflict with each other, the courts must decide on the operation of each. (John Marshall).
.如果两条法律相互之间有冲突，那么法院必须跟据每条法律的实施情况来做出选择. （约翰·马歇尔）。

例句：
Her parents` pleas decided her against dropping out of college.
.她父母的请求使她拿定主意不中途辍学.。

Determine often involves somewhat narrower issues:
Determine 常涉及范围比较狭小的问题：
例句：
A jury will determine whether the charges are true or false.
陪审团将对这项指控的真伪作出裁决。

Settle stresses finality of decision:
Settle 强调解决的定局：
例句：
.The lama waved a hand to show that the matter was finally settled in his mind. (Rudyard Kipling).
.这个喇嘛挥挥手表示那个问题终于在他心里得到了解决. （拉得雅得·吉卜林）。

Rule implies that the decision is handed down by someone in authority:
Rule 有决定是由某个掌权的人正式公布的意思：
例句：
The faculty committee ruled that changes in the curriculum should be implemented.
校务委员会决定课程的改动必须得到执行。

Conclude suggests that a decision, opinion, or judgment has been arrived at after careful consideration:
Conclude 意为经过深思熟虑达成的决定：
例句：
She concluded that it would be better to ignore the criticism.
她作出决定，最好还是不理睬那些批评。

Resolve stresses the exercise of choice in making a firm decision:
Resolve 强调作出不可变更的决定时进行的选择：
例句：
I resolved to lose weight.
我下决心减肥。

例句：
We resolved that nothing they said could induce us to trust them.
我们下定决心，他们所说的一切都无法使我们相信他们