相关单词近义词 shell 壳, sheet 被单, casing 套, covering 覆盖物, outer layer 外层, jacket 短上衣, shield 盾, cover 封面, overlayer 重叠层, overlay 覆盖临近词sheath, sheath effects, sheathing tile, sheath cuticle, sheathing leaf, sheathed crate, sheathed cable, sheath rolling, sheath current, sheathing case, sheathing tape 返回 sheathing