Live endocentric perspective, he light Nan backup.
止住内心的想法,他轻喃出口。
Being two fundamental concepts of Stmcturalism, "endocentric structure" and "exocentric structure" were first proposed by Bloomfield, later improved by Hockett.
Later researchers amused a lot of controversy about the distinction of "endocentric structure" and "exocentric structure" due to their inherent limitation of definition.