Some are tethered to ships, whereas others are cast free to operate like miniature submarines, although these too need the services of a support vessel.
有一些与船只绑定，另一些则如同微型潜水艇一样自由航行，但也是需要有供给船只服务的。
Right now their core product is free, but in the future some additional optional services including development support and monetization opportunities will be added.
目前他们的核心产品是免费的，但是未来会增加一些附加可选的服务，其中包括开发支持，提供赚钱机会（monetization opportunities）。
While Linux Mint is available as a free download, the project generates revenue from donations, advertising and professional support services.
尽管LinuxMint是可以免费下载的，该项目的收入来自捐赠，广告及专业支持服务。
Provide free reinforcement packaging services according to the package content. Support Alipay recharge. There are points system can be arrived at.
根据包裹内容会提供免费加固包装服务。支持支付宝充值。有积分系统可以抵。
The services free the customers from daily IT support and let them focus on their core business.
另外我们还帮助客户减少了日常IT支持的负担，从而使客户更专注于核心业务。
The services free the customers from daily IT support and let them focus on their core business.
另外我们还帮助客户减少了日常IT支持的负担，从而使客户更专注于核心业务。
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