/pr??lɑ??d/C1continuingfor alongtime:延续很久的,长期的Prolonged use of thedrugisknownto haveharmfulside-effects.据了解,长期服用此药会产生对人体有害的副作用。Synonymsdrawn-outextendedlengthylong(TIME)protractedThesaurus: synonyms, antonyms, and examplescontinuing for a large amount of time
longHe's been gone a long time.
prolongedShe returned to work after a prolonged illness.
lengthyAirline passengers may face lengthy delays during holiday travel.
sustainedWe continue to see sustained economic growth.
extendedStanding for extended periods of time can be bad for your back.
See more results ?SMART Vocabulary: related words and phrasesLasting for a long time
all-night
ancient
be going strongidiom
changeless
dateless
full time
immemorial
incorruptibility
incorruptible
incorruptibly
long-time
longevity
man and boyidiom
never-ending
nondurable
time-consuming
timeless
timelessly
timelessness
year
See more results ?(Definition ofprolongedfrom theCambridge Advanced Learner's Dictionary & Thesaurus? Cambridge University Press)#https://dictionary.cambridge.org//dictionary/english/prolonged##