understand + noun/pronoun
动词后直接跟名词或代词作宾语，表示理解具体内容。
I don't understand the question.
理解某事物
理解；明白；懂得；认识到
understanding — present participle of understand
了解；体谅；理解（某人/原因）；熟悉；掌握；精通；认为；推断；以为；默认（存在）；视为（未明言的）存在；知道...的意思；理解；领会。
To grasp the meaning of a word, statement, or fact.
知道...的意思；理解；领会。
To know the meaning of; to parse or have parsed correctly; to comprehend.
熟练掌握；能妥善处理。
To be thoroughly familiar with; to be able to undertake properly.
理解事实或原理；将某种信念视为如此。
To comprehend a fact or principle; to regard or come to regard a belief as such.
了解意图、动机或性格；知道(事件的)原因。
To know the intent, motives or character of; (of events) to know the causes of or reasons for.
相信或推断；在信息不全时仍自以为理解。
To believe or infer, to think one grasps sufficiently despite potentially incomplete knowledge.
把不存在的事物当作存在。
To regard as present when not.
一般现在时
I understand the instructions.
我理解这些指示。
一般过去时
She understood the problem yesterday.
她昨天理解了这个问题。
现在完成时
They have understood the concept.
他们已经理解了这个概念。
不规则动词
Could you explain that again? I don't understand the difference between these two words.
你能再解释一遍吗？我不明白这两个词之间的区别。
用法提示：动词原形，否定句中表示‘不理解’。
After we read the instructions, we understood the whole process.
读完说明后，我们明白了整个过程。
用法提示：过去式，表示过去‘明白了’。
She understands what the poem means because she studied it in school.
她明白这首诗的意思，因为她在学校学过。
用法提示：第三人称单数，宾语为从句，表示‘明白、理解’。
动词后直接跟名词或代词作宾语，表示理解具体内容。
I don't understand the question.
理解某事物
接that引导的宾语从句，表示理解某个事实或情况。
I understand that you need more time.
理解（某事）
接why, how, what等疑问词引导的从句，表示理解原因、方式等。
Do you understand why she left?
理解（疑问词从句）
接人+动名词，表示理解某人的行为或情感。
I can understand him wanting more freedom.
理解某人的行为/感受
较正式，常用于学术或复杂概念，日常对话中较少用
强调突然领会或用全力去理解，但不如'comprehend'正式
常用于语言翻译、艺术解读，不一定达到完全理解
强调感觉层面的理解，不如'understand'深入
grammar · medium
易错句子I am understanding the problem now.
正确表达I understand the problem now.
understand 是静态动词，通常不用于进行时态。
grammar · medium
易错句子We have a good understand of each other.
正确表达We have a good understanding of each other.
understand 是动词，名词形式是 understanding。
grammar · medium
易错句子I don't understand to do this.
正确表达I don't understand how to do this.
understand 后不能直接跟不定式，需用 how/what 等疑问词或 that 从句。
理解问题
I don't understand the problem.
我不理解这个问题。
互相理解
We need to understand each other better.
我们需要更好地互相理解。
理解为什么
I can't understand why he left.
我不明白他为什么离开。
理解如何
Do you understand how this works?
你明白这是如何运作的吗？
理解概念
It took me a while to understand the concept.
我花了一段时间才理解这个概念。
理解指示
Please make sure you understand the instructions.
请确保你理解这些指示。
under- + stand
under- + go
with- + stand
under- + stood
使自己的意思被理解；表达清楚
He struggled to make himself understood in a foreign language.
他努力用外语表达清楚自己的意思。
理解某人的立场或观点
I understand where you're coming from, but I disagree with your conclusion.
我理解你的立场，但我不同意你的结论。
了解细节和 intricacies
It takes time to understand the ins and outs of the new system.
需要时间来了解新系统的来龙去脉。
你永远不可能真正了解一个人，除非你从他的角度去考虑问题。
This quote from Harper Lee's 'To Kill a Mockingbird' teaches the importance of empathy.
这句出自哈珀·李《杀死一只知更鸟》的名言教导了同理心的重要性。
如果你不能简单地解释清楚，你就没有充分理解它。
Often attributed to Albert Einstein, this saying highlights that deep understanding enables simplicity.
这句谚语常被归因于爱因斯坦，强调深刻的理解能带来简洁的表达。
Dictionary facts from ECDICT, WIKTIONARY.