一大群蚂蚁在沙丘上爬动。

An army of ants swarmed over the sand-hill.

我的笔迹，看来就像一大群蚂蚁从墨水瓶里逃出来，没把脚抹干净就在纸上四散奔跑过似的。

My handwriting looks as if a swarm of ants, escaping from an ink bottle, had walked over a sheet of paper without wiping their legs.