support oneself; "he could barely exist on such a low wage"; "Can you live on $2000 a month in New York City?"; "Many people in the world have to subsist on $1 a day"自活する食べる
例:Many people in the world have to subsist on $1 a day 世界の多くの人は1日に1ドルで生活しなくてはならない