周六的毛毛虫班已完成了比尔熊系列书，准备开始读其他的绘本了。
The Saturday Caterpillars have now finished the Bear books and are beginning to read other picture books.
我们班开展了一项特别的课题，把毛毛虫养成蝴蝶，我们所有人都在实验室里观察这些昆虫。
My class started doing a special project in which we raised butterflies from caterpillars, and all of us watched the insects in our laboratory.
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