化学反应 huà xué fǎn yìng

DEFINITIONS

  1. chemical reaction

CHARACTERS

化 huà
HSK 3
change, convert, reform; -ize
学 xué
HSK 1
learning, knowledge; school
反 fǎn
HSK 4
reverse, opposite, contrary, anti
应 yìng
HSK 3
should, ought to, must