持久性毒剂 chíjiǔxìngdújì persistent agent Definitions Defs Origin Strokes Stroke Words Sentences Sents 持久 chíjiǔ adjective lasting lasting; enduring; protracted; continuing for a long time性 xìng affix [-ity] Suffix used after verbs or adjectives to form nouns expressing a state, quality, or scope, similar to English "-ity", "-ness", or "-ism".毒剂 毒劑 dújì poisonous agent a toxic chemical substance or drug
