Suddenly the waters around them slowly swelled in broad circles; then quickly upheaved, as if sideways sliding from a submerged berg of ice, swiftly rising to the surface.

突然，周围的水面慢慢涌起许多大圆圈来，随后，快速地隆起，仿佛一座水下的冰山从一旁冒了出来，迅速升上水面。