1
pin sb down (on sth)
强调迫使某人给出明确回答。
The journalist tried to pin the politician down on his tax policy.
记者试图让政治家就他的税收政策明确表态。
确定；明确
pins down — third person singular of pin down
先理解核心含义，再看它在真实句子里的用法。
确定；明确
to identify or define something precisely
The journalist tried to pin the politician down on his tax policy.
记者试图让政治家就他的税收政策明确表态。
用大头针固定或固定
To attach or secure with pins.
清楚或具体地识别某事(如决定或计划)
To identify something (e.g. a decision or plan) clearly or specifically.
将对手背部压住,使其双肩触地
To hold the opponent back-first so both his or her shoulders touch the mat or ground.
逼迫某人给出明确答案
To corner somebody in order to get a firm answer.
pin down
Base
原形
pins down
3rd person
第三人称单数
pinning down
-ing
现在分词
pinned down
Past
过去式
pinned down
Past participle
过去分词
They pin down the details during the meeting.
他们在会议期间确定细节。
The police pinned down the suspect in the alley.
警察在小巷里制服了嫌疑人。
We have pinned down the source of the error.
我们已经确定了错误的来源。
固定；明确说明
The police officer managed to pin the suspect down before he could escape.
警察设法在嫌疑人逃跑前将他按倒在地。
I tried to pin my friend down on a time for our meeting, but he was too vague.
我试图让朋友明确说出我们见面的时间，但他太含糊了。
Scientists are working to pin down the exact source of the contamination.
科学家们正在努力确定污染的确切来源。
强调迫使某人给出明确回答。
The journalist tried to pin the politician down on his tax policy.
记者试图让政治家就他的税收政策明确表态。
后接名词或从句，表示确定或证实。
Scientists have finally pinned down the cause of the disease.
科学家终于确定了这种疾病的原因。
表示用别针或重物固定。
Pin the paper down so it doesn't blow away.
把纸钉住，免得被吹走。
Not this
We need to pin down on the main issue.
Use this
We need to pin down the main issue.
短语动词'pin down'是及物动词，直接跟宾语，无需介词'on'。中文学习者受'确定'等翻译影响，可能会添加不必要的介词。
Not this
I can't pin down to one answer.
Use this
I can't pin down one answer.
'pin down'是及物动词短语，直接跟宾语，不需要介词'to'。中文中'把...明确说明'可能导致添加'到'。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
确定日期
We need to pin down a date for the meeting.
我们需要确定会议的日期。
制服嫌疑人
The police managed to pin down the suspect.
警察设法制服了嫌疑人。
明确具体含义
It's difficult to pin down the exact meaning of this phrase.
很难明确这个短语的具体含义。
迫使某人明确表态或做出决定
I can't pin him down to a specific date for the meeting.
我无法让他明确说出会议的日期。
弄清楚，确定（事实或细节）
It took the researchers years to pin down the cause of the disease.
研究人员花了数年时间才确定这种疾病的病因。
压制住，困住（不让移动）
The sniper had us pinned down behind the wall.
狙击手把我们压制在墙后面。
Use pins down naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
想象用大头针（pin）把飘浮的想法钉住（down），使其明确说明。
语域：m 常见场景：discussions、negotiations、interviews 通常用于口语和书面语，尤其在需要对方明确表态或确认事实的场合。
可分开使用；常见搭配：pin sb/sth down
Dictionary facts from ECDICT, WIKTIONARY.