shí / nián / bù / jiàn / lǎo / tóng / xué / de / shēng / huó / pǐn / zhì / hé / wǒ / xiāng / bǐ / jiǎn / zhí / pàn / ruò / yún / ní

十年不见，老同学的生活品质和我相比简直判若云泥。

After ten years apart, the quality of life of my old classmate compared to mine is simply as different as heaven and earth.