Daily Chinese Idiom Guessing Game
Vast and majestic in scale; often used to describe a large group of people or things moving with great momentum.
原形容水势广大的样子◇形容事物的广阔壮大，或前进的人流声势浩大。
《尚书·尧典》汤汤洪水方割，荡荡怀山襄陵，浩浩滔天。”宋·范仲淹《岳阳楼记》浩浩荡荡，横夫际涯。”
The army marched across the plain,浩浩荡荡, shaking the ground.