敏感物质 mǐn gǎn wù zhì

DEFINITIONS

  1. sensitive materials

CHARACTERS

敏 mǐn
HSK 5
fast, quick, clever, smart
感 gǎn
HSK 3
feel, perceive, emotion
物 wù
HSK 3
thing, substance, creature
质 zhì
HSK 4
matter, material, substance