Hxen.com's tips：Every day persisted can learn English well!-->■Learn English Everyday■
role – n. a duty or part performed, especially as part of a process
senior fellow – n. a teaching position at a research center or university
radicalization – n. the process of becoming different or new from the traditional
strategic - adj. relating to a general plan that is created to achieve a goal in war, politics
resource – n. a supply of something; a thing that proves useful
challenge – v. to question the action or authority of
narrative - n. a story that is told in full detail
opportunity – n. a situation in which something can be done
