The flowers died off one by one.
花儿开过就一朵接一朵地凋谢了。
With about one language disappearing every two weeks, some of these have probably already died off.
这些濒危语言大约每两周消失一个，现在有的语言可能永远消失了。
Before then, 100,000 eggs were reportedly transported to Lake Saiko but the species was still thought to have died off.
在那之前，据报道曾有10万颗鱼卵被转移到湖西湖，但是这个物种还是被认为已经灭绝。
Before then, 100, 000 eggs were reportedly transported to Lake Saiko but the species was still thought to have died off.
在那之前，据报道曾有10万颗鱼卵被转移到湖西湖，但是这个物种还是被认为已经灭绝。
But some of the corals died off after a few months.
但有些珊瑚短短几个月之后就相继死去。
The bamboo forest burst into flower and then died off.
竹林突然开花，然后一株一株死掉了。
Their habitat has steadily shrunk, and the various species of deer that are their favored prey have died off or been hunted by humans.
他们的栖息地不断缩小，他们喜爱的猎物鹿类相继死绝或被人类猎尽。
She said that scientists still aren’t sure why animals of the ice age died off, or why the world’s climate might suddenly warm and cool.
吉尔表示，目前科学家还无法确定冰河时期动物灭绝的原因、以及为什么全球气候会发生骤变。
She said that scientists still aren't sure why animals of the ice age died off, or why the world's climate might suddenly warm and cool.
吉尔表示，目前科学家还无法确定冰河时期动物灭绝的原因、以及为什么全球气候会发生骤变。
The eruption is one of the likely causes of the Permian-Triassic mass extinction event, in which 95% of Marine species and many terrestrial vertebrates, insects and plants died off.
这次喷发是Permian -Triassic绝种事件的可能原因之一，约95%的海洋物种，陆生脊椎动物，昆虫和植物在这次绝种事件中灭绝了。
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