1
truncheon somebody
truncheon 作动词时是及物动词，后接被打的人。
The riot police truncheoned the protesters.
防暴警察用警棍打了抗议者。
警棍
先理解核心含义，再看它在真实句子里的用法。
警棍
a short, stout club used primarily by police officers
The riot police truncheoned the protesters.
防暴警察用警棍打了抗议者。
短杖,棍棒；警棍。
A short staff, a club; a cudgel.
警棍；指挥棒,尤指警察携带的棍棒。
A baton, or military staff of command, now especially the stick carried by a police officer.
The security guard carried a truncheon on his belt.
保安腰带上别着一根警棍。
During the tour, we saw a truncheon that belonged to a nineteenth-century police officer.
参观时，我们看到一根属于十九世纪警官的警棍。
The officer put down his truncheon and spoke calmly to the crowd.
那名警察放下警棍，平静地对人群说话。
truncheon 作动词时是及物动词，后接被打的人。
The riot police truncheoned the protesters.
防暴警察用警棍打了抗议者。
被动语态常用，强调‘被警棍殴打’这一动作。
The man was truncheoned by the police during the arrest.
那名男子在逮捕过程中被警察用警棍打了。
名词 truncheon 常与 with 连用，表示‘用警棍’作为工具。
The guard threatened the thief with a truncheon.
保安用警棍威胁盗贼。
Not this
The police officer carried truncheon.
Use this
The police officer carried a truncheon.
truncheon 是可数名词，前面必须有限定词（如 a 或 the）。中文里“带警棍”不体现冠词，但英语单数可数名词不能单独使用。
Not this
The guard hit the thief by a truncheon.
Use this
The guard hit the thief with a truncheon.
表示“用某个工具/器械”时，英语用 with，而不用 by。中文“用警棍打”里的“用”应译为 with；by 通常用于被动语态中的施动者，如“was hit by a truncheon”。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
警棍
The officer carried a police truncheon on his belt.
那名警官腰带上别着一根警棍。
挥舞警棍
The guard advanced, wielding a truncheon.
警卫挥舞着警棍走上前来。
用警棍击打
He was struck with a truncheon during the arrest.
他在被捕时被警棍击打。
警棍的击打
The rioters were dispersed by truncheon blows.
闹事者被警棍的击打驱散。
Use truncheon naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
truncheon 以 trunk（树干）开头，想象警察手里的短粗警棍就像一截树干。
语域：formal 常见场景：police、law、media 作为名词表示“警棍”时，通常用于正式或书面语境，多出现在警方通报、法律文件和新闻报道中，口语中较少见。
名词复数与动词第三人称单数同形为 truncheons；动词过去式和过去分词为 truncheoned，现在分词为 truncheoning。
Dictionary facts from ECDICT, WIKTIONARY.