liying919 commented on a change in pull request #12012:
URL: https://github.com/apache/flink/pull/12012#discussion_r421899397
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File path: docs/training/etl.zh.md
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@@ -231,13 +200,9 @@ DataStream<Tuple2<Integer, Minutes>> minutesByStartCell =
enrichedNYCRides
});
{% endhighlight %}
-Now it is possible to produce a stream that contains only those rides that are
the longest rides
-ever seen (to that point) for each `startCell`.
+现在就可以对每个 `startCell` 找到最长的行程，并产生一个流。
Review comment:
@klion26 这里翻译为 “现在就可以产生一个流，对每个 `startCell` 仅包含那些最长行程的数据。” 你觉得是不是更通顺一些呢
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