xūyào jiāshuǐ, huànpán, dǎbāo huò tiáozhěng kǒuwèi shí, kě zhíjiē hūjiào fúwùyuán

需要加水、换盘、打包或调整口味时，可直接呼叫服务员。

When you need a water refill, plates changed, food packaged to go, or the taste adjusted, you can directly call the waiter