In marsupials, such as opossum and kangaroo, the life span of the corpus luteum is similar in pregnant and nonpregnant females . 在有袋目动物中，如负鼠和袋鼠，妊娠和非妊娠母兽的黄体存在时间相似。
2.
Except for a marsupial ( such as the kangaroo or opossum ) , a giant panda baby is the smallest mammal newborn relative to its mother ' s size 除了有袋动物(例如袋鼠或负鼠) ，大熊猫婴儿是相对于它母亲尺寸的最小的哺乳动物新生儿。
3.
Most kingdoms that are raised for fur such as mink , opossum , fox and beaver are choosing no longer to ensoul those species held in captivity 大部分王国被饲养来获得皮毛，如貂、负鼠、狐狸和海狸，它们正在选择不再给被关住的个体赋予灵魂。
4.
Mrs bellingham in cap and seal coneymantle , wrapped up to the nose , steps out of her brougham and scans through tortoiseshell quizzingglasses which she takes from inside her huge opossum muff 布卢姆紧紧搂住她，并生下八个黄种和白种男娃。
5.
One night she picked up a wounded opossum that had been hit by a car on the road . master wanted to have it treated , but had problems finding a veterinarian who was willing to treat wild animals . she also had difficulty finding a veterinary hospital that was open at that hour of the night 有一天晚上，师父也曾经在路上救起一只被车子撞伤的负鼠，师父想救他，却很难找到愿意治疗野生动物的兽医，也很难在晚间的那个时刻找到一家还执业的动物医院。
