长途徒步后，那瀑布是令人惊叹的景色。

The ___waterfall was a stunning sight after our long hike.

早在看见瀑布之前，我们就能听到它的轰鸣声。

We could hear the roar of the ___waterfall long before we saw it.

他们乘船去更近距离地观看那巨大的瀑布。

They took a boat to get a closer look at the huge ___waterfall.