一个名为“儿童”的场景模式会在前面的液晶屏上播放动画小丑，以此让孩子面对镜头时笑起来。

A scene called Children puts animated cartoon clowns on the outer LCD in hopes of making a child smile for the camera.

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现在，对DUMMYDB数据库运行查询，在前面对SAMPLE数据库运行查询时所生成的query . sql文件中将数据库名从SAMPLE修改为DUMMYDB。

Now, run the query against the DUMMYDB database, modifying the database name from SAMPLE to DUMMYDB in the query.sql file you generated earlier when running against the SAMPLE database.

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在前面对管道线的讨论中，您学习了如何接受一个命令的输出，并将它用作另一个命令的输入。

In the preceding discussion of pipelines, you learned how to take the output of one command and use it as input to another command.

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