sleuth out sth
out 与动词连用表示“查出来、弄清楚”；宾语若是代词，须说 sleuth it out，不能说 sleuth out it。
The young reporter finally sleuthed out the truth about the missing files.
那位年轻记者最终查明了失踪文件的真相。
充当侦探；试图查明谁犯了罪,或更一般地,解开谜团。；做侦探
to act as a detective; to investigate a crime or mystery
充当侦探；试图查明谁犯了罪,或更一般地,解开谜团。
To act as a detective; to try to discover who committed a crime, or, more generally, to solve a mystery.
一般现在时
The detective sleuths around the neighborhood.
侦探在附近侦查。
一般过去时
She sleuthed the mystery last week.
她上周调查了那个谜案。
现在进行时
He is sleuthing for clues right now.
他正在侦查线索。
规则动词，过去式与过去分词加-ed。
The reporter spent weeks sleuthing around the neighborhood to find out who had stolen the bicycles.
记者花了几个星期在附近侦查，想找出是谁偷了自行车。
用法提示：sleuthing 是动词的现在分词形式，表示‘侦查、探案’。
She sleuthed through the old files until she finally solved the mystery.
她翻遍旧档案侦查，终于解开了这个谜团。
用法提示：sleuthed 是动词的过去式，表示‘像侦探一样调查’。
He sleuths every weekend with his friends in the local escape room.
他每个周末都和朋友们在当地密室逃脱里侦查破案。
用法提示：sleuths 是动词的第三人称单数形式，表示‘进行侦探活动’。
out 与动词连用表示“查出来、弄清楚”；宾语若是代词，须说 sleuth it out，不能说 sleuth out it。
The young reporter finally sleuthed out the truth about the missing files.
那位年轻记者最终查明了失踪文件的真相。
这一用法不及物，for 后面接想要查明的东西，如线索、答案、真相。
Neighbours sleuthed for clues long after the police had left.
警察离开很久之后，邻居们仍在四处寻找线索。
go + 动词 -ing 表示“去做某事”，多用于口语，语气较为轻松，常带玩闹意味。
The children went sleuthing in the attic and found an old diary.
孩子们去阁楼里探个究竟，发现了一本旧日记。
grammar · medium
易错句子The detective sleuthed the case.
正确表达The detective did some sleuthing on the case.
“sleuth”在该义项中是不及物动词，不能直接带宾语“the case”；改用“do some sleuthing on...”把动作名词化并用介词引出对象，才符合其不及物用法。
grammar · medium
易错句子They went to sleuth around the old neighborhood.
正确表达They went sleuthing around the old neighborhood.
表示“去从事侦查这项活动”时，英语用“go + 动名词”结构，不能套用汉语“去侦查”写成“go to sleuth”；应改为“go sleuthing”。
grammar · medium
易错句子She is used to sleuth alone.
正确表达She is used to sleuthing alone.
“be used to”中的“to”是介词，后面必须接名词或动名词，不能接动词原形；因此要用“sleuthing”，不能用“sleuth”。
investigate 是中性、正式的通用词，可及物或不及物，适用于警方、记者、科研等语境；sleuth 更口语，带“像侦探一样破案解谜”的色彩，较少用于正式报告。
detect 强调察觉或发现隐藏的事物，宾语多为迹象、气味、错误、疾病等，不说 detect a case 来表示“办案”；sleuth 指像侦探一样查案解谜，语体更轻松。
probe 强调深入刺探、反复追问隐秘，常带审视意味，可直接带宾语；sleuth 更侧重以侦探方式破案或解谜，不强调“深入追问”这一动作。
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