资料来源 : WordNet®

sneak in
     v 1: enter surreptitiously; "He sneaked in under cover of
          darkness"; "In this essay, the author's personal
          feelings creep in" [syn: {creep in}]
     2: insert casually; "She slipped in a reference to her own
        work" [syn: {slip in}, {stick in}, {insert}]