task: implies usually a specific piece of work imposed by a person in authority or by circumstances: performed a variety of ~ for the company.


duty: an obligation to perform or a responsibility for performance: the ~ of a lifeguard.


job: applies to a piece of work voluntarily performed, or to an assigned piece of a menial work, and may sometimes suggest difficulty and importance: took on the ~ of turning the company around.


chore: a minor routine activity necessary for maintaning a household or farm and may stress the drabness of such activity: each child has a list of ~ to do.


stint: a carefully alloted or measured quantity of assigned work or service: during his ~ as a governor.


assignment: implies a definite limited task assigned by one in authority: your ~ didn't include interfering with others.


task任务: 一件具体工作, duty职责: 义务责任, job工作: 卑微无偿或泛指, chore杂务家务: 琐碎常规无趣, stint任期: 慎重指定的工作配额, assignment: 明确限定,即有限的任务。


记忆方法: 1）首字母联想，TDJ CSA: Ta De Job Cing Song A: 他的工作轻松啊


         2）任务的意思是一件要做的工作mean a piece of work to be done.