丢卒保车
diū​zú​bǎo​jū

sacrifice something minor to save something major

  1. 丢 丟 diū verb
    to throw
    to throw; to toss; to discard or throw away
  2. 卒 zú
    pawn
    (bound form) pawn in Chinese chess, specifically the black pieces
  3. 保 bǎo verb
    to protect
    to protect; to defend; to guard and keep safe from harm
  4. 车 車 jū
    rook
    chariot piece in Chinese chess 象棋 xiàng​qí; rook in international chess 国际象棋 guó​jì​xiàng​qí