slateとは何ですか?A fine-grained metamorphic rock that splits into thin, smooth-surfaced layers.A piece of this rock cut for use as roofing or surfacing material or as a writing surface.A writing tablet made of a similar material.A record of past performance or activity: start over with a clean slate. A list of the candidates of a political party running for various offices.A dark or bluish gray to dark bluish or dark purplish gray.Made of a fine-grained metamorphic rock: a slate roof. Of the color slate.To cover (a roof, for example) with slate.To put on a list of candidates.To schedule or designate: Our professor has slated the art history lecture for Thursday afternoon; was slated to direct the studio's next film.