Having no marsupial pouch, the mother presses the patagium into service.

但是它们没有像有袋一样的育儿袋，这时猫猴妈妈的翼膜就派上用场了。

Pouches are a peculiarity of marsupials.

腹袋是有袋的特色。

Any of various small arboreal marsupials of the family Phalangeridae, of Australia and adjacent islands, having a long tail and dense woolly fur and including the cuscus and the flying phalanger.

袋貂结趾科中的一种栖于树上的小型有袋，长在澳大利亚及其毗临岛屿上，有长尾和浓密的皮毛，包括袋猴和飞行袋貂。