As discussed earlier, with a write-behind cache, the transaction completes when the data is written to the cache, which is fast.

正如上文讨论的一样，使用写入后缓存，事务在数据写入缓存时完成，这样速度更快。

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Thus, a write-behind cache gives you memory speed for accessing data on all writes, and for all cache-hit reads, and has other benefits that you will see later.

因此，write - behind缓存在访问所有写入数据以及所有缓存命中读取时都能提供内存速度，而且还有一些其他好处，我们将在下文介绍。

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In a write-behind cache, data reads and updates are all serviced by the cache, but unlike a write-through cache, updates are not immediately propagated to the data store.

在write - behind缓存中，数据的读取和更新通过缓存进行，与write - through缓存不同，更新的数据并不会立即传到数据库。

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