Google and Microsoft are among companies that already have these “single sign-on” systems that make it possible for users to 11 just once but use many different services.
谷歌和微软是已经拥有这些“单点登录”系统的公司之一，这些系统使用户只需11一次登录即可使用多种不同的服务。
A Google search can leak between 0.2 and 7.0 grams of CO2, depending on how many attempts are needed to get the “right” answer.
一次谷歌搜索可能泄漏0.2至7.0克的CO2，取决于获取“正确”答案所需的尝试次数。
To deliver results to its users quickly, then, Google has to maintain vast data centres around the world, packed with powerful computers.
为了快速向用户交付结果，Google必须在全球维护庞大的数据中心，里面装满强大计算机。
However, Google and other big tech providers monitor their efficiency closely and make improvements.
然而，谷歌和其他大型科技公司密切监控其效率并进行改进。
If it is trying to upset Google, which relies almost wholly on advertising, it has chosen an indirect method: there is no guarantee that DNT by default will become the norm.
如果微软试图通过这种方式来挑战谷歌，而谷歌几乎完全依赖广告收入，那么它选择了一种间接的方法：默认启用DNT并不能保证会成为行业标准。
例句取自历年考研英语真题，翻译为机器生成，仅供学习参考。