Construction is a complicated process on almost all engineering projects.

差不多在所有工程项目中，施工是一个复杂的过程。

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The forming of personal credit needs a long-term course and its system construction is complicated as well.

个人信用的形成需要一个长期的过程，它的体系构建同样是一个比较复杂的系统。

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This is a complicated system engineering for a long time, but the website construction customers can probably know about the direction of several late operation site promotion.

这是一个复杂的长久的系统工程，不过网站建设客户可大概了解一下网站后期运营推广的几个方向。

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Warm weather and rain complicated palace construction this week, and work was suspended for a couple of days.

WSJ: NY inmates help build ice palace in Adirondacks