and for short periods, they appear in astounding numbers. 在很短的时间内,它们就能达到惊人的数量.
Their numbers are so large, that they need a big territory, lots of fig trees 众多的人口意味着要有广大的领土 需要很多无花果树
These clearings are the only places where the forest elephants can get together in such numbers. 这块空地是唯一可以聚集 并展现象群数量的地方
Vast numbers of chinstrap penguins come ashore to breed. 颊带企鹅成群结队地来到这里的岸边繁衍生息
Away from these rapids flat lizard populations are found much smaller numbers. 在远离这些急流的地方 扁石蜥的数量则要少得多
But here, their numbers are extraordinary. 在这里 它们的数量多得惊人
Yet the nightly onslaught has little impact on bat numbers - 然而 每天傍晚的攻击只会 对蝙蝠数量产生很小的影响
allows some animals to gather there in huge numbers. 使得大批动物到此聚集
Great numbers of fish sustain vast flocks of water birds. 大量的鱼养活着大批聚集的水鸟