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keep clean [英] [ki:p kli:n] [美] [kip klin] [短语] 保持清洁 词频排名 31707/55435 学习人数 N/A 难度等级 10/10 认知比例 N/A 例句 You should always keep clean and tidy. 你们应该一直保持干净整洁。 "To keep clean in our schoolyard, what shall we do?" 要在校园内养成良好卫生习惯的话,我们应该怎么做? 助记 口诀 keep keep
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