自从(zì cóng) - since, ever since in Mandarin

自zì从cóng搬bān家jiā后hòu，我wǒ们men就jiù很hěn少shǎo见jiàn面miàn了le。

Ever since we moved, we have rarely seen each other.

自zì从cóng那nà天tiān起qǐ，他tā变biàn得de更gèng努nǔ力lì了le。

Since that day, he has become more hard-working.

自zì从cóng学xué了le中zhōng文wén，她tā对duì中zhōng国guó很hěn感gǎn兴xìng趣qù。

Ever since she learned Chinese, she has been very interested in China.

自zì从cóng生shēng病bìng以yǐ后hòu，他tā戒jiè了le烟yān。

Since falling ill, he has given up smoking.

自zì从cóng去qù年nián，公gōng司sī发fā展zhǎn得dé很hěn快kuài。

Since last year, the company has grown quickly.