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1£®The majority(¶àÊý)of Greek words are about science and technology.

2£®People from all over the world have made great contributions(¹±Ï×)to American culture.

3£®He focused(¼¯ÖÐ……ÔÚ……)his attention on his study.

4£®All athletes want to participate(²Î¼Ó)in the Olympic Games.