按以下顺序付钱：需求第一，目标第二，额外的东西第三。
Pay for things in this order: needs first, goals second, and extras third.
而是建议类似勾勾这样的公司为他们的音乐与视频服务下载，按所占网络资源的比例支付一定的额外费用。
Instead, they suggested, Google and other firms, such as music and video download services, might choose to pay extra to have their traffic prioritised.
cron工具仍然是使额外实例按预设方案启动或关闭的天然场所。
The cron facility seems the natural place to turn the extra instance on and off on a preset schedule.
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