関連ワード:
why do mirrors reverse horizontally but not vertically why do mirrors flip horizontally but not vertically why do mirrors invert horizontally but not vertically why do mirrors flip images horizontally but not vertically why do mirrors flip faces horizontally but not vertically why does mirror invert horizontally but not vertically why does a mirror flip horizontally but not vertically why don't mirrors flip vertically why do mirrors reflect horizontally and not vertically
