長生不老

immortality

length / long / forever / always / constantly

chief / head / elder / to grow / to develop / to increase / to enhance

long life

to be born / to give birth / life / to grow / raw / uncooked / student

no; not so / (bound form) not; un-

prefix used before the surname of a person or a numeral indicating the order of birth of the children in a family or to indicate affection or familiarity / old (of people) / venerable (person) / experienced / of long standing / always / all the time / of the past / very / outdated / (of meat etc) tough