三乙醇胺 [－－－－]

Jyutping saam1 jyut3 seon4 on1
Pinyin sān yǐ chún ān

三乙醇胺 [－－－－]

Jyutping saam1 jyut3 seon4 on1
Pinyin sān yǐ chún àn