7 sentences

1. 湖水静得没有一丝波纹。

   hú​shuǐ jìng de méi​yǒu yī sī bō​wén.

   The lake was so still that there wasn't a single ripple.

   Source: Dong Chinese Dictionary

2. 湖水清澈澄清，一眼可见底。

   hú​shuǐ qīng​chè chéng​qīng, yī yǎn kě jiàn dǐ.

   The lake water is clear and transparent; you can see the bottom at a glance.

   Source: Dong Chinese Dictionary

3. 湖水清澈见底。

   hú​shuǐ qīng​chè jiàn​dǐ.

   The lake water is crystal clear.

   Source: Dong Chinese Dictionary

4. 潜水员潜入了冰冷的湖水中。

   qián​shuǐ​yuán qián​rù le bīng​lěng de hú​shuǐ zhōng.

   The diver dived into the freezing lake water.

   Source: Dong Chinese Dictionary

5. 倒影在湖水中清晰地映了出来。

   dào​yǐng zài hú​shuǐ zhōng qīng​xī de yìng le chu​lai.

   The reflection was clearly cast in the lake water.

   Source: Dong Chinese Dictionary

6. 他在湖水中看到了自己的镜像。

   tā zài hú​shuǐ zhōng kàn​dào le zì​jǐ de jìng​xiàng.

   He saw his own reflection in the lake water.

   Source: Dong Chinese Dictionary

7. 湖水水位下降以后，原本淹没在水下的石头露出了水面。

   hú​shuǐ shuǐ​wèi xià​jiàng yǐ​hòu, yuán​běn yān​mò zài shuǐ​xià de shí​tou lù​chū le shuǐ​miàn.

   After the lake's water level dropped, the stones that were originally submerged were revealed above the surface.

   Source: Dong Chinese Dictionary