介入

jièrù
to intervene; to get involved

CEDICT

Entry Composition

1 介 jiè
  1. to introduce
  2. to lie between
  3. between
  4. shell
  5. armor
2 入 rù
  1. to enter; to go into
  2. to join; to become a member of
  3. (bound form) to conform to (as in 入时 rùshí)
  4. abbr. for 入声 rùshēng
  5. (on product packaging, after {number n} + {classifier}) containing (n pieces) (from Japanese 入 "iri")