But these spiralling columns hundreds if metres high 这些高达数百米的螺旋型“烟”柱
battle their way for hundreds of miles upstream. 奋力逆流而上数百英里
it will travel hundreds of miles to the sea. 行程数百英里回到大海
After many hundreds of miles they've arrived. 在完成数百英里的行程之后 它们终于抵达了目的地