1·The barge used one-tenth as much water as a comparable field farm. There was no agricultural run-off, and chemical pesticides were replaced with natural predators such as ladybirds.
开普罗介绍说，驳船上的用水只有普通田地的十分之一，也没有农业径流，使用生物天敌防治像瓢虫这样的温室蔬菜害虫而不是化学农药。
2·There were ants, lacewings, ladybirds, and beetles.
里面有蚂蚁，草蜻蛉，瓢虫，和甲虫。
3·Here are some ladybirds.
这儿有一些瓢虫。
4·Ladybirds are red. So are strawberries. Why?
瓢虫是红哒，草莓也是，为啥呢？