自从上中学
Since I entered middle school
以上为机器翻译结果，长、整句建议使用 人工翻译 。
自从上中学，我的英语一直不是很好。
Since the middle school, my English always is not very good.
youdao
自从上了重点中学，詹尼弗下午就不在家看电视了。
Jennifer hadn't been home to watch television in the afternoon since grammar school.
《柯林斯英汉双解大词典》
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