鸟经常吃它们在土壤里发现的虫子。

Birds often eat ___worms they find in the soil.

一些钓鱼者用塑料蠕虫作鱼饵，但真正的蠕虫效果更好。

Some fishermen use plastic ___worms as bait, but real ones work better.

雨后，你可以在人行道上看到许多蠕虫。

After the rain, you can see many ___worms on the sidewalk.