sleepsack
发音
US
词形变化
sleepsacks
复数
sleepsacks
释义与例句
n.
-
1.
A kind of wearable blanket for a baby.
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2.
A device resembling a sleeping bag, often fastened with a zipper, that tightly immobilizes the occupant.
词源
From sleep + sack.
来源：wiktionary