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.
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.
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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