单词	black ivory
释义	black ivory 非洲的黑奴
随便看	stress calculating stress calculation stress checking for non-operation condition stress circle stress cleavage stress-cleavage fold stresscoat stress coat stress coat brittle lacquer stress coating stresscoating stress coefficient stress coefficient of optical effect stress-compensation stress-compensation beam stress-compensation factor stress-compensation slab stress component stress components stress-concentratedarea stress-concentration stress concentration stress concentration effect stress concentration factor stress-concentration factor sdbt sdby sdcb sdccccjd sdcm sddc sddx sdec sdex sdfd 有声读物有备无患有天无日有天没日有失有头儿有头无尾有头有尾有头有脑有头有脸