Onesie is a new English word for loose-fitting casual jumpsuits for adults, made of knit cotton, fleece, or chenille.

Onesie是用来形容一款成人宽松休闲连体装的英文新词，这种连体衣的材料通常为针织棉、羊毛或者绳绒线。

The onesie is perfect for cozying up at home, but it's also meant to be worn in public. This fashion trend seems to be catching on with some celebrities like Khloe Kardashian and Justin Bieber. 

这种成人的连体衣很适合舒适地蜗居在家中，然而它也同时适合在公共场合中穿。这种时尚潮流受到一些名人的追随，如克洛伊·卡戴珊和贾斯汀·比伯。