dǒu / zhuǎn / xīng / yí / zhuǎn / yǎn / jiān / wǒ / men / yǐ / jīng / bì / yè / shí / nián / le斗转星移,转眼间我们已经毕业十年了。Time flies; before we knew it, it had been ten years since we graduated.