chí / táng / lǐ / de / shuǐ / cǎo / shàng / yǒu / yì / zhī / xiǎo / xiǎo / de / biàn / xíng / chóng

池塘里的水草上有一只小小的变形虫。

There is a tiny amoeba on the aquatic plants in the pond.