单词	cavedwelling
释义	同Cave-dwelling
随便看	safety pipet safety pipet filler safety pipet(te) safety pipette filler safety plate safety platform safety play safety plug safety plug socket safety pole safety poster safety precaution safety priority safety problem safety procedure safety--procedure safety professional safety program safety protection cutout safety protection measure safety protective lighting safety radio certificate safety radiotelegraphy certificate safety radiotelephone certificate safety rail