1
deduce sth from sth
常用于表示从已知信息中得出结论。
We can deduce the truth from the evidence.
我们可以从证据中推断出真相。
推断；推论；演绎
先理解核心含义，再看它在真实句子里的用法。
推断；推论；演绎
to conclude something from the available facts or evidence; to infer
We can deduce the truth from the evidence.
我们可以从证据中推断出真相。
To reach (a conclusion) by applying rules of logic or other forms of reasoning to given premises or known facts.
deduce
Base
原形
deduces
3rd person
第三人称单数
deducing
-ing
现在分词
deduced
Past
过去式
deduced
Past participle
过去分词
I deduce that he is lying.
我推断他在说谎。
From the muddy footprints on the floor, the detective deduced that someone had entered through the back door.
侦探根据地板上的泥脚印推断出有人从后门进来。
Based on the weather forecast and the dark clouds, I deduce that it will rain this afternoon.
根据天气预报和乌云，我推断今天下午会下雨。
By comparing the handwriting on the two letters, the expert deduced that they were written by the same person.
通过比较两封信的笔迹，专家推断出它们是同一个人写的。
常用于表示从已知信息中得出结论。
We can deduce the truth from the evidence.
我们可以从证据中推断出真相。
后接 that 从句，表示推断出的具体内容。
From the data, we deduced that the experiment failed.
从数据中我们推断出实验失败了。
直接跟名词，省略了信息来源，常见于非正式或语境明确时。
Sherlock Holmes deduced the solution.
夏洛克·福尔摩斯推断出了答案。
Not this
From the data, we can induce that the experiment failed.
Use this
From the data, we can deduce that the experiment failed.
学习者混淆了deduce与induce。deduce意为‘推论’（基于证据推理），而induce意为‘诱导’或‘归纳’（在逻辑中特指归纳推理），在表达‘推断出’时应用deduce。
Not this
We deduced by the evidence that he was guilty.
Use this
We deduced from the evidence that he was guilty.
介词by使用错误。与deduce搭配的介词是from，表示‘从…中推断出’，而by通常表示方法或手段，此处应用from。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
从…推断
We can deduce from the evidence that he was lying.
我们可以从证据推断出他在撒谎。
推断出…
The detective deduced that the murderer was left-handed.
侦探推断出凶手是左撇子。
得出结论
It took us a while to deduce the correct conclusion.
我们花了一些时间才得出正确的结论。
从…被推断出
This theory can be deduced from the available data.
这个理论可以从现有数据中推断出来。
我已经推断出你去过阿富汗。
Sherlock Holmes deduces clues that others miss.
夏洛克·福尔摩斯推断出别人忽略的线索。
Use deduce naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
联想 'de' 和 'duce'（引导），'deduce' 就是引导推理出结论。
语域：formal 常见场景：academic writing、logical reasoning、scientific discourse deduce 通常用于正式场合，如学术论文、逻辑论证等，在日常口语中较少使用。
All these words end with -duce and share the same stressed vowel and following sounds in standard English (IPA /djuːs/ or /duːs/). They are true rhymes.
Dictionary facts from ECDICT, WIKTIONARY.