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童心未泯英文(童心未泯用英語)

童心未泯的英文： to retain a childish heart;still to keep traces of childishness or childlike innocence retain是什么意思： v.保持；保存；記?。还陀?orthodontic retainer 正畸保持器 I had one retainer. 我曾有一個牙齒矯形器。 Retained earnings is an owners’equity account that represents accumulated earnings retained in the business. 留存收...