使用LEI复制来创建数据副本，这样还允许移动用户完全地离线操作。

Using LEI replication to make a copy of the data also lets mobile users operate completely off-line.

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当系统离线时，可以使用操作系统命令复制整个数据库目录。

The entire database directory can be copied when the system is offline using operating system commands.

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配对规则背后的构想，克里斯·科因告诉我，是复制你离线的感受。

The idea behind the matching algorithms, Chris Coyne told me, is to replicate the experience you have off-line.

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