měi nián / xùn qī / shuǐ wén zhàn / de / gōng zuò rén yuán / dōu / yào / èr shí sì / xiǎo shí / zhí bān

每年汛期，水文站的工作人员都要24小时值班。

During the flood season every year, staff at the hydrological station work 24-hour shifts.