Doctor fish feed on dead skin.For this reason, a visit to a spa pool teeming with doctor fish is regarded as a good treatment for people with psoriasis.
2
湖水是非常清澈的,在岸边都能看到三五成群的小鱼游来游去。
The water is very clear, you can see the fish swim in groups of three and four on the shore.
3
这里有很多树,还有很多小鸟在飞翔,河里也有很多可爱的小鱼,空气非常好。
There are many trees here, and there many birds in flight, the river there many lovely little fish, the air was very good.