Although some big cats like lions exhibit a purr-like sound, studies show that the Patherinae subfamily: lion, tiger, leopard, jaguar, snow leopard, and clouded leopard do not exhibit true purring.

尽管像狮子一类的大型猫科动物也会发出呼噜般的声音，研究却表明豹亚科动物，比如狮子、老虎、美洲豹、美洲虎、雪豹及云豹，并不能发出真正的呼噜声。

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Fite was more accustomed to dealing with farm animals, and to encounter a snow leopard was a marvel.

不过费特先生更习惯与饲养在农场里的动物打交道，与雪豹遭遇简直是一个奇迹。

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Snow Leopard: Apple said its new operating system, Snow Leopard, will be available in September and can perform some tasks up to 90% faster than the current Leopard OS.

雪豹：苹果说它的新的操作系统，雪豹，九月份即将问世，比当前豹操作系统执行一些任务时速度快达90 %。

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By contrast, Windows 7, Vista, OS X Tiger, Leopard, Snow Leopard and versions of the Linux kernel released after September 2009 are all 4K aware.

BBC: Hard drive evolution could hit Microsoft XP users

Its new operating system, OS X Snow Leopard, wasn't mentioned by Apple this week.

FORBES: Magazine Article

And Schiller likely will tout the latest version of Apple's OS X operating system, Snow Leopard, due this year.

FORBES: Magazine Article