針頭線腦 zhēn tóu xiàn nǎo

DEFINITIONS

  1. needle and thread
  2. sewing implements
  3. needlework
  4. (fig.) unimportant thing

CHARACTERS

針 zhēn needle; pin; tack; acupuncture
頭 tóu head; top; chief, first; boss
線 xiàn thread, line, wire; clue
腦 nǎo brain