Since those triggered actions are typically one or more insert, UPDATE, or DELETE statements, the overhead of triggers can be substantial in a mass insert operation.
由于那些被触发的动作通常是一条或多条insert、UPDATE或delete语句，因此，在数据量很大的insert中，触发器的开销会很大。
When the client is online a "that is, when the client has connectivity to the server — database synchronization can be triggered immediately after an update is made to the local database."
当客户机联机时——即客户机已经连接到服务器——在对本地数据库进行更新之后，将立即触发数据库同步。
If they drag it to their My Widgets sidebar, the installation of your feature from your update site is automatically triggered.
如果他们将该文件拖拽到My widgets侧栏，那么将自动触发来自更新站点的特性安装。
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