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to fail to keep on doing something

to decide against doing something

to put an stop to an activity one knows has very little or no chance of achieving success

to make a minimal effort to do something, particularly in order to help someone

to try one's best to improve something that is not good or satisfactory enough

to lose one's enthusiasm or motivation, making one incapable of finishing a job or task

to accept a less important, less visible, or secondary role compared to someone else

achieved or delivered to one easily or without making any effort

to give up doing something or stop being a part of something, particularly due to seeing no way of success

a simple solution that avoids difficulty or responsibility

to neglect important issues and handle less important ones instead