单词	safety film
释义	safety film noun : photographic film having a support of cellulose acetate or other somewhat noninflammable material Word History First Known Use 1905, in the meaning defined above
随便看	duals duan duans duant duar duarchies duarchy duathlete duathlon dub dub-a-dub dubai dubash Dubawnt Dubawnt Lake Dubayy dubbed dubbeltje dubber dubbers dubbin dubbing dubbings dubbins dubby

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