类似地，每次一位生物学家发现一个新物种，就又有了一个纪念某人或某事的机会。
Similarly, every time a biologist discovers a new species, there is the opportunity to honour someone or something.
让孩子们画自己在学校做某事的图画，收集这些画并制成一本班级纪念册。
Have children draw a picture of themselves doing something in school. Collect the pictures and make them into a class book.
让孩子们画自己在学校做某事的图画，收集这些画并制成一本班级纪念册。
Have children draw a picture of themselves doing something in school. Collect the pictures and make them into a class book.
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