copycat

 Longman Dictionary of Contemporary English 5++朗文当代英语 5++LDOCE 5++朗文 5++cop·y·cat1 /ˈkɒpikæt $ ˈkɑː-/ noun [countable]  IMITATEINSULT informal someone who copies other people’s clothes, behaviour, work etc – used by children to show disapproval 模仿他人行为[衣着等]的人〔儿童用语，含贬义〕copycat2 adjective  copycat crime/attack etc a crime, attack etc which is similar to a famous crime that another person has committed 模仿犯罪/袭击等〔指模仿某著名犯罪事件〕 Crime reports in newspapers often encourage copycat crimes. 报纸上的犯罪报道往往会助长模仿犯罪的行为。

Examples from the Corpus

copycat• What about fingerprints, copycat crimes and serial murders?• There were no copycat incidents, and Trondheim is again proud of its crime record.• Several copycat versions of the thigh cream appeared almost immediately, such as Skinny Dip.From Longman Business Dictionarycopycatcop‧y‧cat /ˈkɒpikætˈkɑː-/ adjective [only before a noun] copied from someone else’s product, design etca copycat version of a successful productForeign companies are able to make copycat drugs at a fraction of the cost.

cop·y·cat1 nouncopycat2 adjectiveChineseSyllable  

people’s other copies behaviour, who clothes, someone Corpus Business work etc –

copycat

I

cop‧y‧cat¹ /ˈkɒpikæt $ ˈkɑː-/ noun [countable]
informal someone who copies other people’s clothes, behaviour, work etc – used by children to show disapproval

II

copycat² adjective
copycat crime/attack etc a crime, attack etc which is similar to a famous crime that another person has committed:
    Crime reports in newspapers often encourage copycat crimes.