| 词汇 | chemical agent |
| 释义 | Definition of chemical agent in English:chemical agentnoun
OriginEarly 18th century; earliest use found in Ephraim Chambers (?1680–1740), encyclopaedist. Definition of chemical agent in US English:chemical agentnoun
OriginEarly 18th century; earliest use found in Ephraim Chambers (?1680–1740), encyclopaedist. |
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