第二个学生说他的眼睛充满了浅绿色。

The second student said his eyes were full of light green.

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第二个学生也来了，做了同样的事情。

The second student came along and did the same thing.

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第二个学生解释说：“你在说什么？”

The second student explained, "What are you talking about?"

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Second explicate purpose for the education institutions is to allow students to practice and to apply what they've learnt.

第二个教育体系的,表面目标是,给学生实践的机会,让他们运用所学的知识。

麻省理工公开课 - 媒体、教育、市场课程节选

Last year for the pieces that do vary year to year a bit, last year's first problem set challenged students to write their first or maybe second or third program using this environment called Scratch.

去年的教材有些地方有略微改动，去年的第一个问题集是让学生,在Scratch环境下,写下自己的第一或第二个或第三个程序。

哈佛公开课 - 计算机科学课程节选