burden
名词 burden:
an onerous or difficult concern
同义词:load, encumbrance, incumbrance, onus
weight to be borne or conveyed
the central meaning or theme of a speech or literary work
同义词:effect, essence, core, gist
the central idea that is expanded in a document or discourse
动词 burden:
weight down with a load
同义词:burthen, weight, weight down
impose a task upon, assign a responsibility to