然而，她指出，许多年轻人尤其不愿意在学校冒险，担心考试分数低或成绩差会让他们失去进入名牌大学的机会。

Yet, she noted, many young people are especially unwilling to take risks at school afraid that one low test score or poor grade could cost them a spot at a selective university.

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她指出，许多年轻人尤其不愿意在学校冒险，担心一次考试的分数低或成绩差会让他们失去进入名牌大学的机会。

She noted, many young people are especially risk averse at school—afraid that one low test score or mediocre grade could cost them a spot at a selective university.

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沉积物分选越差或压实越紧，其孔隙度和渗透率就越低。

The more poorly sorted or the more tightly compacted a sediment is, the lower its porosity and permeability.

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Whereas, 27% of whites are reading at a low level, 22% of Asian-Pacific kids are reading at low level.

也处于低水平，然而，27%的白人孩子阅读能力很差，而22%亚太地区的孩子阅读能力很差。

麻省理工公开课 - 媒体、教育、市场课程节选

So, similarly in a case where instead we have a small energy difference, we're going to have a low frequency, which means that we're going to have a long wavelength here.

在这个例子里,能量差较小,我们得到的频率低,这意味这它的波长更长。

麻省理工公开课 - 化学原理课程节选