There were cars buzzing around, people milling about.

车子呼啸而过，人们走来走去。

The Acropolis was crowded with tourists milling about in their respective groups.

雅典卫城挤满了成群结队的游客。

Then she picked a couple more to give to the rabbits milling about.

然后她又摘了两个给四处乱窜的兔子。

All the other boys were milling about, their dragons fighting each other or flapping over their heads.

其他所有的男孩都在转来转去，他们的龙在他们的头顶上相互搏斗或拍打着翅膀。