词语链接
1. How many countries competed in the ancient Olympic Games? (P9) 有多少国家参加古代奥运会?
compete vi 比赛;竞争 competitor n.竞争者 competition n. 比赛 competitive adj. 有竞争力的,竞赛的 compete in 在某一方面竞争; 参加……比赛 (= take part in) compete for 为……而竞争 compete with / against 和……进行比赛/竞争