Birds feed on worms. A bird will go hungry if it cannot catch worms. The bird that gets up early is sure to get some food, so the early bird catches the worm.
鸟以虫为食。鸟捉不到虫就会饿。早起的鸟儿定能得到食物，因此早起的鸟儿有虫吃。
2
It will help researchers learn how basic neural circuits work together in sensing and responding to the environment, such as when a worm smells food and crawls toward it.
能帮助研究者了解基本神经回路如何产生感觉及对环境作出回应的，例如什么时候蠕虫发现事物并爬向事物。
3
In worm-free woodlands, leaves pile up in drifts on the forest floor. Trees and shrubs in wormless places depend on litter for food.