Given a sentence in Korean, provide an equivalent paraphrased translation in Chinese that retains the same meaning both through the translation and the paraphrase.

Example input: 1975 년부터 76 년까지 NBA 시즌은 전국 농구 협회 (National Basketball Association)의 30 번째 시즌이었다.
Example output: 1975-76赛季的全国篮球协会是NBA的第30个赛季。
Example explanation: This is a correct and accurate translation from Korean to Chinese because the translated paraphrase retains the main message that between the years 1975-1976, the 30th NBA season occurred.
Q: 고등 학교는 고등학교가되었고 새 건물은 저학년이되었습니다.
A:
旧文法学校成为高中，而新建筑成为低等学校。