fong3 se6 sing3 wut6 dou6放射性活度
Jyutpingfong3 se6 sing3 wut6 dou6
Yalefong seh sing wuth douh
Definition
radioactivity
Tone guide
T1High level
T2High rising
T3Mid level
T4Low falling
T5Low rising
T6Low level
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