荡荡的英文：
vast; great

The whole world seemed to be black nothingness
整个世界象是黑荡荡一片虚无缥渺。

A vast crowd impacted the square.
广场上挤集了一大群人。

That that vast barren area is inhabited.
那片广阔的荒芜地区有一些人类在居住。

Vast distances boggle the mind.
距离之大，不可思议。

That was a vast expanse of grassland.
那曾是一片广阔的草原。

A vast, strategic maneuver to outflank,
一个大的战略上的侧翼包围…