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。

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Unpaid amounts will be cut if returns fall short in the second or third year.

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However, it will take a second or third year of bad drought for food prices to really have a persistent impact.

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They're the soldiers I met in Baghdad who have done their duty, year after year, on a second, third or fourth tour.

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