hard core
Longman Dictionary of Contemporary English 5++LDOCE 5++ˈhard core noun [singular] British English a) GROUP OF PEOPLEthe small group of people that are most active within a group or organization 〔组织中的〕核心力量，中坚分子，骨干 the hard core of the Communist Party 共产党的中坚力量 b) GROUP OF PEOPLEa group of people who cannot be persuaded to change their behaviour or beliefs 强硬分子，顽固分子 There is still a small hard core of football supporters who cause trouble whenever they can. 仍然有一小撮顽固的足球迷只要一有机会就会制造事端。
Examples from the Corpus
hard core• Others are on the run with their families, leaving a hard core to take their guns and guard their property.• But while Corden thanked the loyal hard core, he did not criticise the floating fans.ˌhard-core, hardcore /ˈhɑːdkɔː $ ˈhɑːrdkɔːr/ adjective 1 [only before noun]EXTREME having an extreme way of life or an extreme belief that is very unlikely to change 死硬的，顽固不化的 a hard-core drug addict 不可救药的吸毒者 hard-core racists 顽固不化的种族主义者2. hard-core pornography SYSEX/HAVE SEX WITHmagazines, films etc that show the details of sexual behaviour, often in an unpleasant way 硬性色情作品，露骨的色情作品〔如杂志、电影等〕Examples from the Corpus
hard-core• We asked for 355 million new dollars to treat hard-core addicts.• More likely than not, many of the seats are filled by hard-core fans who are zealous about the sport.• A few days later Anderson talked with three of the hard-core leaders.• After their tour, Anderson and the camp commandant arranged for the white officials to meet some of the hard-core men.• The main reason is, employers can pick out and fire all the hard-core pro-union workers.• It was to be 24 days before the last hard-core protesters gave themselves up.• But Dole will have the support of loyal, hard-core Republicans.• Investigations of a hereditary or hard-core social problem group have always been crucial in conservative social reformist strategies.From Longman Business Dictionaryhard coreˈhard core noun [countable usually singular] those who are most involved or active in something, or who support something very stronglyThere is a hard core of users for videoconferencing, but it is certainly not a mass medium.ˈhard core nounˌhard-core adjectiveChineseSyllable
Business active group are Corpus the people most of that within small
hard core
ˈhard core
noun [singular] British English
a. the small group of people that are most active within a group or organization:
the hard core of the Communist party
b. a group of people who cannot be persuaded to change their behaviour or beliefs:
There is still a small hard core of football supporters who cause trouble whenever they can.
ˈhard core
noun [singular] British English
a. the small group of people that are most active within a group or organization:
b. a group of people who cannot be persuaded to change their behaviour or beliefs:
usually