1.
A pouch in an animal body, such as the cheek pouch of a rodent or the abdominal pouch of a marsupial.
袋形构造动物身体里的肚袋或腹带，如齿类动物的颊囊成有袋类动物腹部的袋子
2.
Photoreactivation systems have been found in many organisms from bacteria to marsupials.
在从细菌到有袋类动物的许许多多有机体中，已经发现光致反应系统。
3.
A temporary egg pouch in various fishes and crustaceans.
（鱼类和甲壳类动物的）临时卵袋
4.
monotremes and marsupials are aplacental mammals.
单孔类动物和有袋动物是无胎盘的哺乳动物。
5.
all mammals except monotremes and marsupials.
除了单孔类和有袋类以外的所有哺乳动物。
6.
Pouches are a peculiarity of marsupials.
腹袋是有袋动物的特色。
7.
The koala is a nocturnal, tree dwelling marsupial mammal.
考拉属喜夜间活动的、于树上的有袋类哺乳动物。
8.
Of or belonging to the order Marsupialia.
有袋目动物的属于有袋目动物的，有袋目动物的
9.
Any of various other animals, such as the koala, that resemble a true bear.
似熊的动物一种类似熊的其他熊类动物，如树袋熊
10.
all mammals except monotremes and marsupials are placental mammals.
除了单孔类动物和有袋动物之外所有的哺乳动物都是有胎盘的哺乳动物。
11.
A young animal, especially a baby kangaroo.
幼袋鼠，幼兽幼小的动物，尤指幼袋鼠
12.
woolly-haired monkey-like arboreal marsupial of New Guinea and North Australia.
新几内亚和澳大利亚北部类似猴子的有毛发的树栖有袋动物。
13.
There are some 3 000 species of animals here, including the ever-popular kangaroos, wallabies, koalas, and wombats.
这里有3000多种动物，包括非常受人欢迎的袋鼠、沙袋鼠、树袋熊和袋熊。
14.
Go to the zoo, watch a kangaroo.
去动物园，去看袋鼠。
15.
or or relating to the marsupials.
属于或关于有袋动物的。
16.
The kangaroo is a native of Australia.
袋鼠是产於澳洲的动物.
17.
A burrowing rodent of the genus Dasyprocta, native to tropical America and usually having brown fur streaked with gray.
刺豚鼠原产于美洲热带地区的袋鼬属穴居啮齿类动物，通常有带灰色花纹的棕色皮毛
18.
The kangaroos in this zoo come from Australisa.
这个动物园中的袋鼠产于澳大利亚。