骨质疏松 gǔ zhì shū sōng

DEFINITIONS

  1. osteoporosis

CHARACTERS

骨 gǔ
HSK 5
bone; skeleton; frame, framework
质 zhì
HSK 4
matter, material, substance
疏 shū
HSK 6
neglect; careless, lax
松 sōng
HSK 4
pine tree; fir tree