HSK 5
自从
zìcóng介
since (a time); ever since
自从搬家以后我常坐地铁。
Zì cóng bān jiā yǐ hòu wǒ cháng zuò dì tiě.
I have often taken the subway since moving.
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New in the HSK 3.0 word list at level 5.