two

270 篇文章
The young all emerge within a day or two, a marvel of timing.
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The young all emerge within a day or two, a marvel of timing. 让人惊讶的是所有的小雪雁 差不多都在一两天内出生

The East African savannahs alone sustain nearly two million wildebeest.
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The East African savannahs alone sustain nearly two million wildebeest. 仅生活在东非稀树大草原的角马 就接近两百万(注:角马属羚羊的一种)

Two million are thought to live here, but no one really knows.
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Two million are thought to live here, but no one really knows. 共约两百万只瞪羚生活在此处 但具体数量仍不得知

In the Arctic, the two polar bear cubs are now independent of their mother
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In the Arctic, the two polar bear cubs are now independent of their mother 在北冰洋 两只小北极熊现在可以离开妈妈独立生活了

0ne out of every two cubs do not survive their first year out on the ice.
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0ne out of every two cubs do not survive their first year out on the ice. 两只幼熊中往往会有一只无法在第一年存活下来

Two weeks later, they are ready.
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Two weeks later, they are ready. 两周后它们做好了准备

They are just two months old
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They are just two months old 小熊才两个月大

advancing two and a half miles a day.
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advancing two and a half miles a day. 一天扩大2.5英里

In an hour or two the sun will have burnt it off
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In an hour or two the sun will have burnt it off 1~2小时后 太阳将使它们蒸发

seems to be restricted to just two small caves.
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seems to be restricted to just two small caves. 可能只存在于两个较小的洞穴中