以下是一些常见的英语单词的不规则复数形式，希望能帮助您拓展单词知识:
Child - Children
Woman - Women Leaf - Leaves
Fish - Fish(no change) Deer - Deer (no change) Sheep - Sheep(no change) Campus - Campi Datum - Data
Criterion - Criteria
Phenomenon - Phenomena Thesis - Theses Cactus - Cacti Focus - Foci
Nucleus - Nuclei Syllabus - Syllabi Basis - Bases
