引線穿針 yǐn xiàn chuān zhēn

DEFINITIONS

  1. a pull-through to thread a needle
  2. fig. to act as go-between

CHARACTERS

引 yǐn
HSK 4
to pull, draw out, attract; to stretch
線 xiàn thread, line, wire; clue
穿 chuān
HSK 2
penetrate, pierce, drill; wear
針 zhēn needle; pin; tack; acupuncture