live off [sth]vtr phrasal insepphrasal verb, transitive, inseparable: Verb with adverb(s) or preposition(s), having special meaning, not divisible--for example,"go with" [=combine nicely]: "Those red shoes don't go with my dress." NOT [S]"Those red shoes don't go my dress with."[/S]
(survive on, be supported by)
靠...过活
The widow lives off her late husband's pension and Social Security checks.