kangaroo是可数名词
n.袋鼠(产于澳大利亚)
复数： kangaroos
The kangaroo is indigenous to Australia.
袋鼠原产于澳大利亚。
There are two kangaroo jump in house one behind the other one.
房子里有两只袋鼠在一前一后的跳着。
There was a small Kangaroo who was bad in school.
有这么一只小袋鼠，它在学校里非常淘气。
To make a study of the kangaroo, he came to australia.
为了研究袋鼠，他来到了澳洲。
I think God sent a kangaroo to keep him warm.
我觉得是上帝派来一只袋鼠帮他取暖。
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