Mother kangaroo tied the bark around her waist and it turned into the pouch that all kangaroos have today.
袋鼠妈妈把树皮绑在了自己的腰上,树皮变陈了一个袋子,就是今天每个袋鼠都有的一个育儿袋。
Suddenly she sees a kangaroo with her baby.
突然,她看到一只袋鼠带着她的孩子。
It is advantageous for a kangaroo female to produce young at a time when plant productivity is sufficient to support her offspring.
袋鼠雌袋鼠在植物繁殖力充足的时候生育后代是有利的。
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