kangaroo

The kangaroo has a problem..这只袋鼠有一个难题。

This is the kangaroo from Australia..这是一只来自澳洲的袋鼠。

Thanks to special bacteria in their stomachs, kangaroo flatulence contains no methane and scientists want to transfer that bacteria to cattle and sheep who emit large quantities of the harmful gas..袋鼠胃中有一种特殊的细菌能使其放的屁中不含有甲烷。 科学家想将这种细菌移至牛羊的胃中，以抑制它们所排放的大量有害气体。

kangaroo island,n. 袋鼠岛（澳大利亚岛，等于坎加鲁岛）