slip-case

n (usu cardboard) case for a book （通常指用硬厚纸板做的）书套.

slide-rule, sliding door, sliding scale, slight, slightingly, slightly, slightness, slim, slime, sliminess, slimly, slimmer, slimness, slimy, sling, sling-shot, slink, slinkiness, slinky, slip, slip-cover, slip-knot, slip-on, slip-over, slip-road, slip-stream, slip-up, slippage, slipped disc, slipper, slippered, slipperiness, slippery, slippy, slipshod, slipway, slit, slither, slithery, sliver,