jiǔ zuò / kě néng / huì / yǐn qǐ / wài zhì / suǒ yǐ / tā / měi gé / yī xiǎo shí / jiù / zhàn / qǐ lái / huó dòng

久坐可能会引起外痔，所以他每隔一小时就站起来活动。

Sitting for long periods can cause external hemorrhoids, so he stands up and moves every hour.