Middle Block: Here goes Middleware software like web and applications servers.

中层：这里是一些中间件的软件，如网络和应用服务器。

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Conflicts between the Israelis and Palestinians have been called a major stumbling block to Middle East peace.

以色列和巴勒斯坦之间的冲突被称为中东和平的主要绊脚石。

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Your code will be much easier to read and test if the class has a name attached and isn't placed right in the middle of an entirely different block of code.

如果该类附带一个名称并且不是放在完全不同的代码块的中间，代码将更易于阅读和测试。

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He pointed to three pillars with fretwork and arches intact between them, in the middle of a block off Winthrop Street, in a parking lot.

NEWYORKER: Brooklyn Circle

The stumbling block to this middle ground is that patients often don't know what are good (and bad) reasons to go on HRT.

CNN: 5 good reasons for going on hormones

Battier drove for a layup from the right wing, and Sanders rushed down the middle of the lane to attempt a block.

NPR: Heat Take Off Late, Top Bucks 98-86 For 2-0 Lead