Dr. Dolittle and his friends waved to Long Arrow as they disappeared below the waves.

Dolittle 博士和他的朋友们在消失在海浪下时向 Long Arrow 挥手致意。

Suddenly the ichthyosaurus and the plesiosaurus disappear below, leaving a whirlpool eddying in the water.

突然，鱼龙和蛇颈龙消失在了下方，留下了一个漩涡在水中旋转。

The last ranks of the herd were now passing over the rails, while the first had already disappeared below the southern horizon.

在最后一批牛群跨过铁路的时候，它们的先头部队则已经在南方地平线上消失了。

Winds from the African coast made the waves boisterous, and many passengers speedily disappeared below deck.

来自非洲海岸的风使海浪汹涌，许多乘客很快就消失在甲板下。

Tomorrow, the 21st, was the day of the equinox; the sun would disappear below the horizon for six months not counting refraction, and after its disappearance the long polar night would begin.

明天21日是春分，析光作用映出的阳光不算，太阳以后就要没人水平线下，有六个月不能出来，太阳不见，极圈的长夜时期就开始了。