Kangaroos are part of a special category of animals, called marsupials.
它是一种特殊的动物，叫做有袋动物。
As an example, he described an unusual cancer that is spreading among endangered marsupials called Tasmanian devils.
他举了个例子，目前有一种罕见的癌症正在威胁濒危物种袋獾。
Although they are commonly called koala "bears," koalas are marsupials and have nothing at all to do with bears, except that they are cute like a teddy bear.
尽管我们时常称考拉为“树袋熊”，其实考拉是有袋类哺乳动物，跟熊完全没关系，只是看起来萌萌的像泰迪熊罢了。
Although they are commonly called koala "bears," koalas are marsupials and have nothing at all to do with bears, except that they are cute like a teddy bear.
尽管我们时常称考拉为“树袋熊”，其实考拉是有袋类哺乳动物，跟熊完全没关系，只是看起来萌萌的像泰迪熊罢了。
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