1. pillowcase:Diaper [尿布] | Pillow case [枕套] | Bedside table [床头柜]
2. 枕套的解释
2. pillowslip:pillowcase 枕头套 | pillowslip 枕套 | pillowy 柔软的
3. pillow cover:pillow cover with zipper closing 拉链枕套 | pillow cover 枕套 | pillow inner 枕芯
4. pillow sack:pillow mat 枕席 | pillow sack 枕套 | pillow sham 枕头饰套