gōng / zuò / rén / yuán / tí / xǐng / yóu / kè / bú / yào / bǎ / shǒu / shēn / jìn / shí / rén / yú / de / shuǐ / chí

工作人员提醒游客不要把手伸进食人鱼的水池。

The staff warned visitors not to put their hands into the piranhas' tank.