616討論區：英文諺語 No pain, no gain 是什麼意思？
- When the river water is polluted, many native fish species will disappear.
The water of this river is very dirty, but it was actually very clean before.
Residents of this village will use the river water here to wash their clothes.
The water of this river is very clear.
The monks of this temple come to the river to draw water from the river every morning.
- The water of a clean river is very clear, but being clear does not necessarily mean it is clean.
When there is a fire in the forest, the fire brigade will use river water to extinguish the fire.
There are many prawns and crabs in the river water here.
We put the watermelon in the river water, the watermelon will soon become very cold.
The government built a water filtration system beside the river to make the river water cleaner.