duty
名词复数：duties
词形变化：
词义辨析：
同义:
n.职责; 职务
task
work
job
chore
assignment
charge
function
obligation
responsibility
n.税, 关税
tax
toll
tariff
同义参见:
commission
office
occupation
mission
labor
stint1
weight
homework
capacity
toll1
thing
service
exaction
errand
post3
position