zhuān xīn zhì zhì yú
nínshìfǒuzàixúnqiú：专心专心致志专心致志于专心 专心致志 专心致志于gèngduōjiéguǒ...
yīngwénjièshì:
  1. n.  be bound up in
  2. n.  commit oneself to
  3. n.  fix on
  4. n.  fix upon
  5. v.  bury