traffic (v.) 的單數動詞

traffic (v.) 其單數動詞是 traffics (for third person singular)

e.g. He traffics in stolen goods.

traffic (simple verb)
traffics
trafficked - past tense
trafficked - past participle
trafficking - present participle (He was found guilty of trafficking in drugs.)

The word "trafficking" can be used as a noun (He is accused of drug trafficking.)

Other verbs similar to traffic in the verb form: panic, panic

panic, panics, panicked, panicked, panicking
picnic, picnics, picnicked, picnicked, picnicking

2010-07-31 10:54:45 補充：
You can find the word "traffics" in Collins Cobuild Advanced Learner's English Dictionary.
They give different forms of the verb as well. They even include an example:

"The president said illegal drugs are hurting the entire world and anyone who traffics in them should be brought to justice."

2010-07-31 11:44:47 補充：
traffic (v.) 其單數動詞是 traffics

WEBSITE:
Wordworld Online
http://www.wordwebonline.com/en/TRAFFIC

Merriam-Webster Dictionary
http://www.merriam-webster.com/netdict/traffic
a writer who often traffics in hyperbole

Yahoo Education:
http://education.yahoo.com/reference/dictionary/entry/traffic

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The correct answer is trafficks.

Proof:

(a) Any person who trafficks in marihuana by knowingly or intentionally manufacturing,..............

Quote from: http://www.massdrugcrimeslawyer.com/Massachusetts_Drug_Trafficking_Defense_Lawyer.html

Cannot find the word 'traffics' in similar documents.

2010-07-31 10:35:02 補充：
Source:
Massachusetts Drug Trafficking Laws
Chapter 94C: Section 32E. Trafficking in marihuana, cocaine, heroin, morphine, opium, etc.

2010-07-31 15:56:16 補充：
'traffics' is also acceptable, though not as popular as 'trafficks'. May be both are correct.