使用不同的浏览器和设备访问，结果相同，排除是特定浏览器或设备的问题。" Mitchell was born in Alberta and grew up in Saskatchewan, but she had been living in the U.S. for three several years (and California for two) by 1970, so I do not know the place she picked up the expression "for free."I would use 'on' simply bec