对于打哈欠是由血液中的氧气减少或血液中的二氧化碳增加引起的这种观点，一些实验也同样提出了严重的质疑。
Experiments have also cast serious doubt on the belief that yawning is triggered by a drop in blood oxygen or a rise in blood carbon dioxide.
尽管有人质疑用户是否愿意支付这笔费用，但每月9.99美元的服务依然为其由广告商支持的业务模式提供了另一种选择。
Though some question whether viewers will be willing to fork over the money, the $9.99 per month service is a critical addition to its otherwise advertiser-supported business model.
但得出这个结论的人们很少考虑到，这个被质疑歧视，可能实际上是由被他们设想为处于不利地位的女性自己导致的。
But people who draw this conclusion rarely consider that the discrimination in question might actually be being exercised by the supposedly disadvantaged women themselves.
应用推荐