a task or piece of work assigned to someone as part of a job or course of study.
a homework assignment
同义词：
taskpiece of workpiece of businessjobdutychorechargelaborfunctioncommissionmissionerrandengagementoccupationundertakingexercisebusinessofficeresponsibilitydetailendeavorenterprisepiece of researchprojecthomeworkprep
2
the attribution of someone or something as belonging.
the assignment of individuals to particular social positions
