复数： koalas

Aids-like virus new threat to koala

一种类艾滋病病毒成为考拉的新威胁

We 'd consider the koala with the same level of diligence and dedication as if it were the death adder .

如果我们要把考拉列为濒危物种，我们还必须参考它的被关注的程度和贡献程度。

Koala calls may be misleading but larger males have even lower voices than their runtier counterparts .

考拉的叫声也许具有迷惑性，但是体型大的雄性考拉确实能发出比他们的竞争对手更低的声音。

Shorter pipes produce higher-frequency sounds so small animals like the cuddly koala should have high voices .

越短的管子产生频率越高的声音，因此小动物们，比如考拉应该发出高音。

The australian koala foundation said a recent survey showed the population could have dropped by more than half in the past six years .

澳大利亚考拉基金会说，最新的研究表明，在过去的六年中考拉的数量减少了一半以上。