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2code
3principal
4cat
5assist
6constant
7theory
8regulate
9statistic
10overall
11research
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An animal that can skillfully climb trees.
cat
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to control something by means of rules
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to help somebody to do something
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including all the things or people that are involved in a particular situation
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a collection of information shown in numbers
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most important
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a connection between two or more people or things
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a formal set of ideas that is intended to explain why something happens or exists