settle for 将就:When you accept something that's less than what you hoped for, that's called "settling for" something.
(settle /ˈsetl/ v. 定下心来)
e.g. If you want to drink some coffee, but there's no coffee left, you might "settle for" tea.
e.g. I’m holding out for(坚持) the right person. I'm not just going to settle for(将就) someone because I hit a certain age(到了某个特定年纪).