三项式

trinomial (math.)

three / 3

three items / three events / three terms / tri- / trinomial, ternary (math.) / triathlon (abbr. for 三項全能|三项全能)

surname Xiang

back of neck / item / thing / term (in a mathematical formula) / sum (of money) / classifier for principles, items, clauses, tasks, research projects etc

type / form / pattern / style