放射性衰變 fàng shè xìng shuāi biàn

DEFINITIONS

  1. radioactive decay

CHARACTERS

放 fàng
HSK 3
put, release, free, liberate
射 shè
HSK 5
shoot, eject, issue forth, emit
性 xìng
HSK 4
nature, character, sex
衰 shuāi
HSK 6
decline, falter, decrease; weaken
變 biàn change, transform, alter; rebel