VOA慢速英语:US, China to Cut Gases Linked to Climate Change

pollution - n. the release of dangerous or unpleasant substances into the air, soil or water

represent - v. to act in the place of someone else; to substitute for; to serve as an example

separatists - n. a member of a group of people who want to form a new country or religion

strikes - n. an act or example of striking