Word: 清澈 (qīngchè)

山脚有一条清澈的小溪。

Shānjiǎo yǒu yìtiáo qīngchè de xiǎoxī.

There is a clear little stream at the foot of the mountain.

山里的小河水很清澈，能看见鱼。

Shān lǐ de xiǎo héshuǐ hěn qīngchè, néng kànjiàn yú.

The stream in the mountains is so clear that you can see the fish.

湖水清澈，能看见水底的石头。

Hú shuǐ qīngchè, néng kànjiàn shuǐdǐ de shítou.

The lake water is so clear that you can see the stones on the bottom.