单词 | safety zone |
释义 | Definition of safety zone in English:safety zonenoun ˈseɪftɪ zəʊn
OriginLate 19th century; earliest use found in Annual Reports Inspectors of Explosives 1876. From safety + zone. Definition of safety zone in US English:safety zonenounˈseɪftɪ zəʊn
OriginLate 19th century; earliest use found in Annual Reports Inspectors of Explosives 1876. From safety + zone. |
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