YngwieWang commented on a change in pull request #9299: [FLINK-13405][docs-zh]
Translate "Basic API Concepts" page into Chinese
URL: https://github.com/apache/flink/pull/9299#discussion_r317585117
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File path: docs/dev/api_concepts.zh.md
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@@ -211,76 +156,56 @@ print()
</div>
</div>
-Once you specified the complete program you need to **trigger the program
execution** by calling
-`execute()` on the `StreamExecutionEnvironment`.
-Depending on the type of the `ExecutionEnvironment` the execution will be
triggered on your local
-machine or submit your program for execution on a cluster.
+当设定好整个程序以后你需要调用 `StreamExecutionEnvironment` 的 `execute()`
方法**触发程序执行**。至于在你的本机触发还是提交到集群运行取决于 `ExecutionEnvironment` 的类型。
-The `execute()` method is returning a `JobExecutionResult`, this contains
execution
-times and accumulator results.
+`execute()` 方法返回 `JobExecutionResult`，它包括执行耗时和一个累加器的结果。
-Please see the [Streaming Guide]({{ site.baseurl }}/dev/datastream_api.html)
-for information about streaming data sources and sink and for more in-depths
information
-about the supported transformations on DataStream.
+有关流数据源和 sink 以及有关 DataStream 支持的转换操作的详细信息请参阅[流处理指南]({{ site.baseurl
}}/zh/dev/datastream_api.html)。
-Check out the [Batch Guide]({{ site.baseurl }}/dev/batch/index.html)
-for information about batch data sources and sink and for more in-depths
information
-about the supported transformations on DataSet.
+有关批数据源和 sink 以及有关 DataSet 支持的转换操作的详细信息请参阅[批处理指南]({{ site.baseurl
}}/zh/dev/batch/index.html)。
{% top %}
-Lazy Evaluation
+延迟求值
---------------
-All Flink programs are executed lazily: When the program's main method is
executed, the data loading
-and transformations do not happen directly. Rather, each operation is created
and added to the
-program's plan. The operations are actually executed when the execution is
explicitly triggered by
-an `execute()` call on the execution environment. Whether the program is
executed locally
-or on a cluster depends on the type of execution environment
+无论在本地还是集群执行，所有的 Flink 程序都是延迟执行的：当程序的 main
方法被执行时，并不立即执行数据的加载和转换，而是创建每个操作并将其加入到程序的执行计划中。当执行环境调用 `execute()`
方法显式地触发执行的时候才真正执行各个操作。
Review comment:
"Whether the program is executed locally or on a cluster" 翻译为 “无论在本地还是集群执行”
放在句首了。
“depends on the type of execution environment”
没有翻译，因为前面介绍过执行环境决定本地还是集群执行，所以不翻译不会造成误解，加上很难翻译顺畅。
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