At the current rate of decline, many of the rain forest animals could become extinct in less than 10 years.

按照目前的下降速度，许多雨林动物不到十年就会绝种。

It is 250 years since the wolf became extinct in Britain.

狼在英国绝种已经250年了。

the bones of extinct animals.

绝种动物的骨头。

Herbalism had become an all but extinct skill in the Western world.

草药医术在西方已成为一项几乎灭绝的机能。

Its tallest volcano, long extinct, is Olympus Mons.

它最高的火山是熄灭已久的奥林匹斯山。