寿命不长

one's days are numbered / not to have long to live (often fig.)

long life / old age / age / life / birthday / funerary / a surname

life span / life expectancy / lifetime (of a machine)

life / fate / order or command / to assign a name, title etc

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

length / long / forever / always / constantly

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