yǔ​fǎ​gōng​néng​duàn

tagmeme

  1. grammar
    the set of structural rules for a language, including how words and sentences are formed; syntax
  2. function
    function; capability; effectiveness
  3. duàn measure word
    section
    A section, part, segment, or paragraph of something continuous such as a piece of writing, a road, or a story; also used for periods of time or stages of a process.