2a dime a dozenCOMMONAmerican EnglishAmE informal very common and not valuable 平常的,不稀罕的,不值钱的SYN British English ten a penny
PhDs are a dime a dozen nowadays.
如今哲学博士学位不值钱了。
Examples from the Corpus
a dime a dozen• Girls are a dimea dozen.• Jobs like his are a dime a dozen.• So-calledsolutions to the longitude problem had been a dime a dozen even before the act went into effect.• Metaphors of Britain's decline have been a dime a dozen in the post-war years.• Sam told her not to worry, jobs like that were a dime a dozen.
Examples from the Corpus
dime• Metaphors of Britain's decline have been a dime a dozen in the post-war years.• A dime taken from any other kid was a good deal.• Even Mafia guys dropdimes on each other nowadays.• It cost me two years of impoverishment, spending every dime on legal fees.• Quarters, nickels, dimes, the whole works.• What ever happened to dimenovels?
From Longman Business Dictionary
dimedime /daɪm/ noun [countableC]
a coin used in the US and Canada, worth ten cents (=one tenth of a dollar)
Origindime
(1300-1400)Old French“tenth part”, from Latindecima