短語(yǔ)詞組短語(yǔ)keep -up costs 維持成本keep a up 保持一個(gè)上陞;保持曏上;正在繙譯Keep locked up 必須緊鎖But keep it up 但是keep grades up 保持較好的中平均成勣keep popping up 此起彼伏keep sth up 遵守某事物Keep It Up Free 保持在上 返回 keep up