超过一半的学生会发现，当他们进入九年级之后，他们的学习成绩会一落千丈。

More than half of students will find their academic performance declining sharply when they enter the ninth grade.

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当他们进入教堂时，所有的人都在唱歌。

When they entered the church, all the people were singing.

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人类是终极入侵物种——当他们进入新的领地时，他们经常会取代已经生活在那里的野生动物。

Humans are the ultimate invasive species—when they move into new territory, they often displace the wildlife that was already living there.

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As a company matures, then they typically feel that it's time to pay a dividend.

当公司进入成熟期,他们就会觉得,到了发股利的时间了

耶鲁公开课 - 金融市场课程节选

The child starts off grasping the world only in a physical way, in a sensorimotor way, but when he gets to the preoperational period, the capacity to represent the world, to have the world inside your head, comes into being.

开始的时候,儿童只能通过生理的方式,通过感知运动的方式,来认识世界,但是当儿童进入了前运算阶段,他们便逐渐拥有了表征事物,在头脑中构建世界的能力

耶鲁公开课 - 心理学导论课程节选