地上到处都是爬行的蚂蚁。

There were ___ants crawling all over the ground.

他非常温柔，连一只蚂蚁都不忍伤害。

He is so gentle that he couldn't hurt an ___ant.

我们看着一只蚂蚁把一块面包屑搬回巢穴。

We watched an ___ant carry a crumb back to its nest.