1·What kind of moose is that?
那是哪一种驼鹿？
2·The moose died of old age days before.
这只驼鹿几天前因年老而死去。
3·Indeed, there are vast areas of spruce forest without moose.
事实上，有大片的云杉林没有驼鹿。
4·The spruce community is not substantially affected by either the presence or absence of moose.
无论驼鹿的存在与否，云杉群落都不会受到实质性的影响。
5·When wolves later reached the island, naturalists widely assumed that the wolves would play a key role in controlling the moose population.
博物学家们普遍认为，当狼群之后抵达该岛时，它们将在控制驼鹿数量方面发挥关键作用。