逆反应 nì fǎn yìng

DEFINITIONS

  1. reverse reaction
  2. counterreaction
  3. inverse response

CHARACTERS

逆 nì
HSK 6
disobey, rebel; rebel, traitor
反 fǎn
HSK 4
reverse, opposite, contrary, anti
应 yìng
HSK 3
should, ought to, must