释义（英文）
名词 Noun
- (organic chemistry) Initialism of hydrocarbonate.
- (organic chemistry, refrigeration) Initialism of hydrocarbon, a class of molecules containing hydrogen and carbon atoms.
- (medicine) Initialism of healthy control.
- (sports) Initialism of hockey club.
- (fandom slang) Initialism of headcanon.
- (music, subculture) Abbreviation of hardcore.
- (cycling) Abbreviation of hors categorie (French HC).
- (sports) Initialism of head coach.