There exists three kinds of agency , each one has its relative agency cost.

委托代理关系存在三类形式，各类委托代理关系都存在相应的代理成本。

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There exists three kinds of moving patterns and people, economical, operational and environmental at present.

目前在中国存在经济型、事业型、环境型三类流迁人口和三种流迁方式。

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The following example verifies that the tables included in the template exist on three servers, whether the primary key exists, if there is a data type mismatch, and so forth.

下面的例子检验模板中包括的表是否在三个服务器上，是否存在主键，是否存在数据类型的不匹配，等等。

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There exists a small chance that the downmove from the 1422 high has only posted three waves down, and we are in the midst of a complex fourth wave.

FORBES: Stock Market Rally Last Chance To Get Out Before Big Plunge