This is because a copying collector does not need to visit or copy dead objects, only live ones.

这是因为，拷贝收集器不需要访问或拷贝死对象，只处理活动对象。

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With this option, you explicitly copy files locally while you have a live connection, close the connection, work on the files later, and upload them back to the server after you have finished.

有了这些选项，您可以在进行实时连接时精确地复制文件，关闭掉连接，处理它，然后在您完成处理以后将它们上传回到服务器上。

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Such a copy is not without its traps -- copying a live file system can be risky, especially if there are open files.

这种复制操作本身存在一定的陷井，即对活动的文件系统进行复制可能是有风险的，特别是在打开了多个文件的情况下。

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Mr Blair played coy on live TV even when a copy of the newspaper story was waved under his nose.

BBC: Tattooists and tax

He also said he expects Blockbuster, which Netflix sued last April for patent infringement over Netflix's sales policies, to copy the Netflix live movie service.

FORBES: Magazine Article

He also said he expects Blockbuster (nyse: BBI - news - people ), which Netflix sued last April for patent infringement over Netflix's sales policies, to copy the Netflix live movie service.

FORBES: Netflix To Stream Live Movies For Free