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