速效 sùxiào fast-acting Origin Definitions Defs Strokes Stroke Words Sentences Sents 速效性毒剂 sùxiàoxìngdújì quick-acting agent 速效救心丸 sùxiàojiùxīnwán fast-acting heart pills A fast-acting Chinese medication developed in 1982 to treat heart conditions such as angina.