生物降解 shēng wù jiàng jiě

DEFINITIONS

  1. biodegradation

CHARACTERS

生 shēng
HSK 1
life, living, lifetime; birth
物 wù
HSK 3
thing, substance, creature
降 jiàng
HSK 4
descend, fall, drop; lower, down
解 jiě
HSK 3
loosen, unfasten, untie; explain