Have you ever known there are such creatures as an albino two-headed snake? It has two brains. Each head, principal and subordinate, thinks and feeds separately.

你知道这个世界上有一种叫做双头白化蛇的生物吗？它居然有两个脑袋，每一条蛇都能够单独思考和进食。

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While translating long sentences, first find the structure of the original sentence, principal clause and subordinate clause, find out the logical relation between them.

翻译长句时要先弄清原文的句法结构，找出主句和从句以及它们之间的逻辑关系；

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According to the heart of guidance program, from theory and practice, the paper explores a new college physical educations teaching model of principal and subordinate integration.

本文根据《全国普通高等学校体育课程教学指导纲要》的精神，从理论与实践上探索大学体育“主从一体化”的全新教学模式。

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