kǒu / kě / de / shí / hou / hē / shuǐ / shì / zuì / jiǎn / dān / de / zhǐ / kě / fāng / fǎ口渴的时候,喝水是最简单的止渴方法。When you are thirsty, drinking water is the simplest way to quench your thirst.