3 sentences

1. 杯子里的水满了，正往外溢。

   bēi​zi lǐ de shuǐ mǎn le, zhèng wǎng wài yì.

   The cup is full, and the water is overflowing.

   Source: Dong Chinese Dictionary

2. 大雨过后，阴沟里的水溢了出来。

   dà​yǔ guò​hòu, yīn​gōu lǐ de shuǐ yì le chū​lái.

   After the heavy rain, the water in the sewer overflowed.

   Source: Dong Chinese Dictionary

3. 水满则溢，评价一个人要客观、全面。

   shuǐ mǎn zé yì, píng​jià yī gè rén yào kè​guān, quán​miàn.

   Just as water overflows when full, one should be objective and comprehensive when evaluating someone.

   Source: Dong Chinese Dictionary