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smuggling of [sth]
smuggling of sth 表示“对某物的走私”，of 后接被走私的物品。
The smuggling of cultural relics is illegal.
对文物的走私是非法的。
走私
smugglings — plural of smuggling
先理解核心含义，再看它在真实句子里的用法。
走私
the act of secretly importing prohibited goods or goods on which duty is due
The smuggling of cultural relics is illegal.
对文物的走私是非法的。
走私某物的行为。
An act of something being smuggled.
The smuggling of rare animals across the border is a serious crime.
将珍稀动物走私过境是一项严重的罪行。
Police arrested three people for their part in the smuggling of untaxed cigarettes.
警方逮捕了三名参与走私未缴税香烟的人。
The new law introduces harsher penalties for the smuggling of goods by sea.
新法律对海上走私货物规定了更严厉的处罚。
smuggling of sth 表示“对某物的走私”，of 后接被走私的物品。
The smuggling of cultural relics is illegal.
对文物的走私是非法的。
名词修饰 smuggling 时，表示被走私的物品，如 drug smuggling（毒品走私）、arms smuggling（军火走私）。
Drug smuggling is a global problem.
毒品走私是一个全球性问题。
Not this
Smuggle is a serious crime.
Use this
Smuggling is a serious crime.
主语位置需要名词或动名词，smuggling 是名词（动名词），不能直接用动词原形 smuggle。
Not this
He was arrested for a smuggling.
Use this
He was arrested for smuggling.
表示“走私”这一抽象活动时，smuggling 是不可数名词，前面不加不定冠词 a。
Not this
He is a smuggling.
Use this
He is a smuggler.
表示“走私者”要用指人的名词 smuggler，smuggling 是行为名词，不能用来指人。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
毒品走私
The police arrested him for drug smuggling.
警方以毒品走私罪逮捕了他。
人口走私
Human smuggling is a serious crime.
人口走私是严重犯罪。
走私集团
The smuggling ring operated across three countries.
这个走私集团在三个国家活动。
走私行动
Customs officials uncovered a large smuggling operation.
海关官员发现了一起大规模走私行动。
走私指控
He is facing smuggling charges.
他面临走私指控。
走私企图
The smuggling attempt was foiled at the border.
这起走私企图在边境被挫败。
Use smugglings naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
sm 像‘私密’的声母：私密地夹带货物过关，就是走私。
语域：neutral 常见场景：法律语境、海关检查、新闻报道 该词属于中性词，但通常多用于正式或书面语境，如法律条文、海关文件和新闻报道；日常口语中较少单独使用。
Juggling, struggling, and snuggling rhyme with smuggling (all end with /ʌɡlɪŋ/). Tangling, mingling, and wriggling also end in 'gling' but have different vowel sounds (/æ/ and /ɪ/), so they are useful lookalikes to watch out for.
Dictionary facts from ECDICT, WIKTIONARY.