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Students participate in language-proficiency competition 31st annual AIA 2017 Sandcastle Competition held in Galvesto 表征四个表示 “比赛”的词：race, contest, competition, match petition的过去式是什么?petition的用法和例句 Chinese proficiency competition for college students in Turk 日本政府面向全国征集“鼓励喝酒”创意 Insurance curbs bite into incomes 星巴克中国新版网站试运行，有何期待和改进 必备单品 outfly的过去式是什么?outfly的用法和例句