因此湖水被沉在水底的火山灰染成了乳白色，

因此湖水被沉在水底的火山灰染成了乳白色，

結果 (英文) 1:

So the lake was submerged in the bottom ash dyed white,

結果 (英文) 2:

So the lake was dyed milky white by the ash that sank to the bottom of the water,

結果 (英文) 3:

As a result, the lake water is milky white with volcanic ash,