Each expression conveys a set of related messages.

每个表情都传达着一系列相关信息。

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Each expression class has an evaluate method, and an enumerate method.

每个表达式类都有一个evaluate方法和一个enumerate方法。

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Each expression class has a simplify method, to allow expression rewriting.

每个表达式类都有一个simplify方法，以允许表达式重写。

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but to make their own. The primary or fundamental movements of the new school of the dance must have within them the seeds from which will evolve all other movements, each in turn to give birth to others in an unending sequence of still higher and greater expression,thoughts,and ideas.

VOA: special.2010.08.29

Each answer, expression and reaction will be pored over by pundits looking to tell voters who won the debate.

CNN: Battle lines drawn for showdown campaign

Each has a unique facial expression, posture and hairstyle.

CNN: ASIANOW - TIME Asia | Visions of China: Xi'an

The authors examined the genomes of 40 women and found that in each case, the pattern of expression of these genes was unique.

ECONOMIST: Genetics