Students of human migration speak of "push" and "pull" factors, which influence an individual's decision to move from one place to another.

研究人类迁移的学生们谈到“推”和“拉”因素，这些因素会影响个体是否会从一个地方迁移到另一个地方。

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She put her hands under the leaves and began to pull and push them aside.

她把她的手放在树叶下，开始把它们推拉到一边去。

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You push and I'll pull.

你推，我拉。

《牛津词典》

But for many men, the most difficult part of P90X isn't its heavy emphasis on pull-ups and push-ups, but rather its relentless call for stretching and warming up.

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"I would look at it from a 'push-and-pull' perspective, " says University of Hong Kong School of Business associate professor Patrick Chau.

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Fierstein, also represented on Broadway right now with the book for "Newsies, " spins his typical theatrical magic, teasing out from the movie both a love triangle and the pull-push of fathers and sons.

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