骨質疏鬆 gǔ zhì shū sōng

DEFINITIONS

  1. osteoporosis

CHARACTERS

骨 gǔ
HSK 5
bone; skeleton; frame, framework
質 zhì matter, material, substance
疏 shū
HSK 6
neglect; careless, lax
鬆 sōng lax, loose; loosen, relax