We must protect these endangered animals before they become extinct.

在这些濒危动物灭绝之前，我们必须保护它们。

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Another important factor to consider is the cost of saving these endangered species.

另一个需要考虑的重要因素是拯救这些濒危物种的成本。

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Thank you for agreeing to let me take photos of these endangered animals.

感谢你同意让我拍摄这些濒危动物的照片。

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The book "Disappearing Destinations" explains more about these endangered places and suggests helpful ways to take action.

VOA: special.2009.04.22

Bart Childs made a series of videos that show Tucker Childs and his research team at work trying to save these endangered African languages.

VOA: special.2009.12.02

She spent many years studying the behavior of these endangered animals.

VOA: special.2009.08.19

Some of these endangered species cling to and seek to reform their faith.

CENTERFORSECURITYPOLICY: Truly endangered species

But through the cooperation of local farmers, vineyard owners and conservationists, Valais is becoming a sanctuary for these highly endangered insects.

BBC: Switzerland��s valley of butterflies

It was about these rare and endangered animals that are tied into the bigger picture of the health of our planet.

NPR: Chang Tang's Endangered Antelope